
六年级口算天天练
诺必达-服务器功率
2023年2月22日发(作者:印章交接单)口算练习题一(第一周)
4.95÷0.9=9.65÷0.1=0.325×100=2.5×8=
2
1
×
2
1
=
3
2
×
4
3
=12×
3
2
=
4
1
+3=
0.6÷
3
5
=4.4-3
3
5
=
1
6
÷
1
6
=
4
5
×
5
8
=
3.6-1
3
5
=
2
3
×
5
2
=
7
4
÷
3
2
=1.5÷0.05=
.5×0.4=
8
3
÷3=36×
2
1
=
2
1
÷
5
2
=
18×700=400÷80=64÷4=360÷20=
1÷
7
5
=
9
8
÷4=3-1.95=
8
7
-
4
3
=
1.64÷41=10÷20=24÷15=8.65×10=
45+
10
9
÷9=1-
5
4
÷
5
4
=3×
3
1
÷3×
3
1
=
10-0.9=9.5+5=4-
3
1
=7÷1.4=
口算练习题一(第二周)
8
5
+
8
4
=
5
9
×
3
2
=
11
8
÷8=
4
1
+
3
1
=
0.56÷0.7=0.125×4=3.28×0.1=3.9÷0.13=
3
2
÷
2
3
=
3
1
×27=26×
2
1
=
7
6
×2=
3
2
÷
3
2
=
4
1
÷
3
1
=
13
2
×2=
26
5
×13=
5
4
×3=
5
4
-
10
7
=
4
1
×8=
4
1
+3=
7.2+12.8=46.7-3.8=12.8÷4=5.2÷13=
3.6-1
3
5
=
2
3
×
5
2
=
7
4
÷
3
2
=1.5÷0.05=
5
3
×
2
1
=
7
1
÷
2
1
=24÷
3
2
=
8
3
×
5
4
=
12÷
1
2
=1÷7+
7
6
=
7
12
÷
7
4
=1-1×
3
1
=
口算练习题三(第三周)
2.5×0.4=
8
3
÷3=36×
2
1
=
2
1
÷
5
2
=
0.35×0.6=3.08×0.01=4.95×1000=
5÷6=
6
5
÷5=
9
5
×18=
7
6
÷
5
6
=
5
3
×
2
1
=
7
1
÷
2
1
=24÷
3
2
=
8
3
×
5
4
=
18×700=400÷80=64÷4=360÷20=
4
15
×
1
4
=
4
3
÷
4
3
=
7
1
×
10
3
=1.8×
6
1
=
0.35×0.6=3.08×0.01=4.95×1000=6.9×0.1=
45
14
×
21
15
=
2
1
+
2
1
=4×
4
3
=12÷
3
2
=
46.7-3.8=12.8÷4=5.2÷13=12.5÷5=
0.25×3.97×4=(1.2+8.8)×0.4=40×20%=
口算练习题四(第四周)
0.21×100=0.7×4=0.05×4=4×0.3=
1÷
7
5
=
9
8
÷4=3-1.95=
8
7
-
4
3
=
5×400=
5
3
×
2
1
=
7
1
÷
2
1
=24÷
3
2
=
10
7
×
7
5
=
3
2
×
3
2
=
7
6
+6=
4
3
×8=
0.56÷28=0.36÷0.4=0.4×0.5=6×
7
1
=
22
3
×11=10÷
7
5
=
7
6
×
3
2
=5×
11
2
=
5-
5
12
=
5
144
×12=3.7+5=300×0.3%=
430-250=0.17+0.06=1.02-0.09=7200÷800=
0÷10%=6.8×80%=
5
4
-(
5
4
-
2
1
)=40×20%=
25×4=0.125×8=4.8÷0.3=0.96÷2=
口算练习题五(第五周)
22
3
×11=10÷
7
5
=
7
6
×
3
2
=5×
11
2
=
10÷10%=6.8×80%=6×
1
4
=12÷
3
5
=
18
5
÷1=12÷
4
3
=1÷
3
5
=
7
2
×
3
2
=
4.7+2.3=6.9-2.5=7.2×0.8=6×
3.4=
4
15
×
1
4
=
4
3
÷
4
3
=
7
1
×
10
3
=1.8×
6
1
=
2
5
×2=
3
4
÷6=
6
7
+1÷7=
3
11
×
22
9
=
0.62-0.32=1.4×0.5=0.75×100=0.68+0.42=
28÷
3
14
=0×
6
1
=
3
2
×
2
1
=
5
4
-
2
1
=
1÷2.5=1.25×0.8=3.2÷0.04=0÷
1.7=
0×
7
12
+
1
8
=
1
2
×
4
5
+0.6=
3
1
-
6
1
=0.24×5
=
口算练习题六(第六周)
4
21
×
7
4
=
2
1
÷2=
7
5
×
3
2
=
2
1
÷
3
2
=
8÷
4
7
=2.75÷
1
2
=3.2-
10
9
=
2
1
+
5
1
=
5-
5
12
=
5
144
×12=3.7+5=300×0.3%=
28÷
4
5
=1÷
2
5
×
4
15
=1÷
5
4
=
4
3
×
9
8
=
0.3×
5
6
=
3
5
÷
9
10
=
3
8
×
4
7
=32×0.4=
0.02×0.5=3.6÷0.3=6.3÷7=5.6÷100=
5
3
×
3
2
=
4
5
×
5
12
=0×
6
5
=5-
4
3
=
1.5×7=1.32×8=0.7×8=10.3×2=
430-250=0.17+0.06=1.02-0.09=7200÷800=
2.4÷0.8=10.8÷9=9.6÷0.8=0.108÷2=
4
7
×
1
8
=
5
6
×0÷
3
5
=1÷
7
8
=
3
4
×16=
2
1
×
4
1
-
8
1
=
2
1
×
4
1
×
8
1
=
5
4
-(
5
4
-
2
1
)=
口算练习题七(第七周)
4
7
×
1
8
=
5
6
×0÷
3
5
=1÷
7
8
=
3
4
×16=
0.081×10=75÷10=0.96÷0.8=0.8×7=
6
5
×
8
7
=24×5=
9
8
÷
9
8
=0.3÷
3
5
=
5×0.6=0.9×0.3=3.5×0.2=2.01×0=
10
7
×
7
5
=
3
2
×
3
2
=
7
6
+6=
4
3
×8=
9.2-6=8500÷500=3.2-3.2=3.7+2.3=
6÷
7
2
=0÷
6
5
=6.3÷0.07=26×
13
12
=
7.2×0.1=0.01×0.1=0.25×0.4=1.6÷0.8=
5×400=
5
3
×
2
1
=
7
1
÷
2
1
=24÷
3
2
=
2
1
×
4
1
-
8
1
=
2
1
×
4
1
×
8
1
=
5
4
+(
5
4
-
2
1
)=
口算练习题八(第八周)
17×300=0.98-0.09=0.2+0.78=600×700=
5
3
×
2
1
=
7
1
÷
2
1
=24÷
3
2
=
8
3
×
5
4
=
0.56÷28=0.36÷0.4=0.4×0.5=6×
7
1
=
8
5
+
8
4
=
5
9
×
3
2
=
11
8
÷8=
4
1
+
3
1
=
0.47+0.13=4.5+4=4-0.6=0.95+0.05=
1÷
7
5
=
9
8
÷4=3-1.95=
8
7
-
4
3
=
1
4
×99+
1
4
=
5
6
-
1
3
=25×4=0.125×8=
5
7
×
2
3
÷
5
7
=
1
2
×
1
3
÷
1
2
×
1
3
=1-
7
12
=
0.1-0.01=0.22×102=9÷0.25÷4=
45
14
×
21
15
=
口算练习题十(第十周)
3
5
×
1
2
=1÷
2
3
=
4
5
÷8=7×
2
7
=
3
8
×12=
1
5
×
16
25
=
1
4
-
1
5
=
1
3
+
1
4
=
9
10
÷
3
20
=14÷
7
8
=12÷
1
2
=1÷1%=9.5+0.5=
1
3
+
1
4
=0÷
1
5
×2=1-
11
12
=
7
8
×
5
14
=
7
12
÷
7
4
=
4
5
-
1
2
=
1
9
×
7
8
×9=6.9
×0.1=4.9÷6.3=
5
4
+
15
2
=
8
7
×
7
4
=
1―
4
1
―
2
1
=
8
3
+
4
3
=
5
3
÷
10
3
=9÷
4
3
=
12÷
3
2
=
6
5
-
2
1
=6.8÷10%=4.5+
2
1
=
301-199=0.24×300=
9
10
÷
3
2
=2.5+0.25=
10
3
×
12
5
=1÷
11
5
=
2
1
÷60%=
12
5
×15=
==
2
1
×
4
1
+
8
1
=
0.25×3.97×4=(1.2+8.8)×0.4=40×20%=
口算练习题十一(第十一周)
==
3
2
3====
5
2
1===
=45+
10
9
÷9=4.8÷0.3=
2
1
+
2
1
=4×
4
3
=
2
3
×
5
2
=
7
4
÷
3
2
=2.5×0.4=1.5÷0.05=
1-
5
4
÷
5
4
=3×
3
1
÷3×
3
1
=25×
5
2
×4=
8
3
×
3
2
=9.5-9.5×0=
3
1
-
4
1
=0.3÷6=
2.4×
8
3
=4.2÷
5
1
=1.25×0.7×8=1-
9
1
=
5
6
÷30=1.4÷3.5=
4
5
×1.3+
4
5
×3.7=
(
2
3
+
1
2
)×12=(估算)49×301≈350×0.02=
1.9×4×0.5=9×
1
8
÷9×
1
8
=0.6÷0.2=
口算练习题十二(第十二周)
=4
8
3
=
=
2
1
×
5
1
=
4
1
×
8
1
=
4
1
×
6
1
=
===25×
5
2
×4=
====
=3
5
4
==8
4
1
=
=8×
12
5
=
25
5
×15==
28
2
×
6
4
×
10
7
10.2+0.02=0.15+0.7=670+250=10.2+0.2=
25×100=3.2-0.32=2+2.8=380-290=
2
1
÷
7
8
=5.8×9+5.8=
8
3
+
8
5
-
8
5
+
8
3
=
====
口算练习题十三(第十三周)
====
====
5个
16
3
连加的和是多少?8个
11
1
相加的和是多少?
计算练习题(混合运算和简便运算)
4
7
÷
3
2
+
4
7
÷3(1-
2
1
-
4
1
)÷
8
1
(1÷
1
4
+
1
4
÷1)×8
5
3
+
4
1
÷(
3
2
-
2
3
×
3
1
)12÷(1+
3
1
-
6
5
)
5
2
×4÷
5
2
×4
4
3
-
4
3
÷3+
5
3
3
1
÷
2
1
-
4
5
×
5
2
5
3
+
4
1
÷
5
2
×(
4
3
+
5
1
)÷
10
19
13
6
÷[
11
7
×(1-
7
3
)]
8
5
×
4
3
+
4
1
×
8
5
(
12
5
+
16
7
)×483-
12
7
-
12
5
4
3
×
5
2
+
4
3
×0.6
25
7
×
11
8
+
25
7
÷
3
11
25
7
×101-
25
7
28×(
4
1
+
7
1
-
14
3
)
50
3
×5190×
4
91
25
4
3
×4(39×
7
2
+
7
2
×4)÷
7
2
12
7
-(
4
1
-
12
5
)
8.37-3.25-(1.37+1.75)15
3
14
+4.25―5
3
4
0.125×
3
4
+
1
8
×8.25+12.5%1×
100
1
÷×
10
1
13
5
×
7
4
×14
9
4
×5×185–3×
9
7
11
4
+
11
2
×
6
11
3
1
×
16
5
×
5
3
7
4
×
9
5
+
7
3
×
9
5
(
5
1
+
3
2
)×15
18
5
×
4
1
×
10
9
(
4
1
+
9
2
)×36
11
7
×
8
3
×
9
4
5
1
×8÷
5
4
5
3
+
2
1
×
5
4
6
5
÷
3
2
÷
6
5
(
8
5
+
6
5
)×
25
4
(
6
5
–
3
2
)×
10
9
1–
9
7
÷
8
7
98×
97
5
125
8
×126
(
5
1
+
3
1
)×15
7
4
×
9
5
+
7
3
×
9
5
3
1
×
16
5
×
5
3
2.5×97×0.41.25×97×8
4
7
÷
3
2
+
4
7
÷3(1-
2
1
-
4
1
)÷
8
1
(1÷
1
4
+
1
4
÷1)×8
12÷(1+
3
1
-
6
5
)
5
2
×4÷
5
2
×41×
100
1
÷×
10
1
4
3
-
4
3
÷3+
5
3
3
1
÷
2
1
-
4
5
×
5
2
5
3
+
4
1
÷(
3
2
-
2
3
×
3
1
)
5
2
×(
4
3
+
5
1
)÷
10
19
13
6
÷[
11
7
×(1-
7
3
)]
5-
2
3
×
21
10
-
7
2
1.25×32×2.5×970.36×1010.36×98
7
5
-
9
5
×
7
5
9
2
+
16
7
×
9
2
4
1
+
4
3
×
7
2
90×
91
4
86×
91
2
5
2
-
5
2
×
8
3
6-
3
2
×
8
3
10÷(
2
1
+
3
1
)
5
1
+
4
3
÷6
(1-
9
5
)×
8
3
5
2
×
4
1
+
2
1
÷
8
5
4
3
÷
2
1
-
6
5
×
5
4
8-
7
4
÷
3
2
×
6
1
2-
8
3
×4)÷
6
1
(
3
1
+
5
4
÷2)×
11
6
4
1
×(6-
7
6
)÷
7
3
3
2
+6×
2
1
4-
8
5
÷5
12÷(1-
7
3
)(
2
1
+
5
2
)×
9
4
10÷
5
2
-
4
3
×
9
2
2
1
-
3
2
÷8+
4
1
25
2
×15+
5
4
×
2
1
3
2
+16×
8
3
÷
7
2
(
2
1
-
3
2
×
4
1
)÷516×(1-
2
1
-
4
1
)
2÷(
5
1
+
3
1
)×
15
4
72×(
2
1
-
3
1
+
4
1
)
(
8
1
+
4
3
)÷(1-
10
1
)
9
8
+
7
6
×
3
2
+
7
3
5
1
÷3+
5
4
×
3
1
9
4
+
7
2
+
18
5
÷
2
1
2-
3
2
÷
5
4
-
6
1
8
3
+
5
4
×
6
5
+
3
1
7
1
×
11
6
+
11
5
÷7
4-
15
8
÷
3
2
-
5
1
9
8
×(9+
4
3
)-
3
2
9
1
-
12
5
×
5
4
÷3
5
7
×
3
2
-
5
2
×
3
2
0.36×101-0.360.36×99+0.36
20
13
×
26
15
-
9
2
3-
7
12
-
5
12
5
7
×
3
8
+
5
8
×
5
7
8
15
×
5
16
+
5
27
÷
10
9
1-
9
2
×318×(
4
9
+
5
6
)
2
3
×7+
2
3
×5(
1
6
-
1
12
)×24-
4
5
5-
2
3
×
21
10
-
7
2
(
5
7
×
4
7
+
4
7
)÷
4
7
1
5
÷[(
2
3
+
1
5
)×
1
13
]
(32×
4
1
+17)÷
12
5
(25+
4
3
)÷
4
1
+
4
1
25
18
×
16
9
+
25
7
×
16
9
+
16
9
()
6
5
5
4
÷[(
8
5
-
2
1
)÷
8
5
]
(21×
7
3
+
7
4
×21)×
4
1
99+
10
9
)÷9
5
4
×
6
5
÷
8
5
15
14
÷[(
5
4
+
3
2
)×
11
10
](
6
5
+
5
4
)×30
3
1
+3÷
2
1
6
5
×
5
6
-
10
9
÷
5
9
4-
11
5
-
11
7
8
1
×58+
8
1
×41+
8
1
235-135÷18
3
5
×153–0.4×153
(
4
5
+
1
4
)÷
7
3
+
7
10
10-
7
19
-
12
19
+
1
19
5
4
×
7
4
×
4
5
-
2
1
5
4
×
6
5
+
5
2
÷
5
3
103-4500÷75
4.8+8.63+5.2+0.37(
2
15
+
3
11
)×15×11
25×
1
3
÷
5
2
×
3
10
13.09-8.12-4.88
12×
1
8
×[
1
2
÷(
3
5
×
10
9
)]0.86×15.7-0.86×14.7
37.5+19.5÷2.5×41.72×8.6-0.72×8.6
13
5
×
7
4
×145–3×
9
7
11
4
+
11
2
×
6
11
3
1
×
16
5
×
5
3
7
4
×
9
5
+
7
3
×
9
5
0.85×199
7.6×0.8+0.2×7.60.25×8.5×412.
5×
0.96×0.810.4-9.6×0.35
5
3
+
5
2
×
2
1
(
5
1
+
3
2
)×15
18
5
×
4
1
×
10
9
(
4
1
+
9
2
-
3
1
)×36
11
7
×
8
3
×
9
4
5
1
×8÷
5
4
6
5
÷
3
2
÷
6
5
(
8
5
+
6
5
)×
25
48
15
×
5
16
+
5
27
÷
10
9
8×(
4
9
+
5
6
-
3
2
)
1.27+3.9+0.73+16.13.07-0.38-1.62
3.25+1.79-0.59+1.757.5+4.9-6.5
1.29+3.7+2.71+6.38-2.45-1.55
(
6
5
–
3
2
)×
10
9
1–
9
7
÷
8
7
98×
97
5
3-
7
12
-
5
12
5
7
×
3
8
+
5
8
×
5
7
125
8
×124
3.12+3.12×9928.6×101-28.62.4×102
2
3
×7+
2
3
×5(
1
6
-
1
12
)×24-
4
5
(
5
7
×
4
7
+
4
7
)÷
4
7
1
5
÷[(
2
3
+
1
5
)×
1
13
]
(2.5-0.25)×0.4(7.7+1.54)÷0.7
70÷252.5×2.43.9÷(1.3×5)
10.4-0.4×0.3515÷(0.15×0.4)18÷(
2
1
-
3
1
)
4.25÷2.5×4+0.17
25
4
×101—
25
4
32.6×33-326×2.3
4
3
-
4
3
÷3+
25
9
(
5
4
-
8
3
)÷(
4
1
+
10
3
)
9
7
×
15
4
+
9
7
×
15
11
12
7
+
12
5
×
6
3
42
1
÷[1-(
7
1
+
3
2
)]
439+46×7248÷4×1867×(96÷6)
25×17-120(450-175)÷5268+29×65
315-345÷3574÷(125118)948-13×52
17×36÷3560-12×24375÷5×24
解方程和解比例
7
8
χ=
11
16
χ×(
3
4
+
2
3
)=
7
24
1
2
χ+
1
2
=
1
2
χ-
3
5
χ=
6
5
8x-
4
1
×3=
4
45
(x-6)×
6
5
=25
x÷
10
7
=
28
5
4
3
χ+
4
1
=
2
1
χ-
5
4
χ=12χ+10%χ=110
5X-3×
10
7
=
5
7
5
4
+
2
1
X=
10
9
3
1
χ+60%χ=28
1.6∶χ=0.125∶0.5
3
4
x-
5
8
=
5
6
×30%
1.75x-0.5x=6.256:x=
3
7
:
1
3
1
12
X-
1
2
=
1
2
7
8
χ=
11
16
3
4
χ-
2
3
=
7
24
χ-
3
5
χ=
6
5
x-
5
2
x=14
5
3
+
4
1
x=
20
17
7-
3
2
=2x
3
1
X+5=
2
1
X
5
3
X+
5
2
=5x-
8
5
x=
3
1
×45
X+
3
7
X=18
3
8
-
1
6
X=
4
1
X
2
=
0.75
1.25
5∶8=20∶X
4
3
:X=
9
1
:217-1.2X=5
x-
5
2
x=14
5
3
+
4
1
x=
20
17
7-
3
2
=2x
3
1
X+5=
2
1
X
5
3
X+
5
2
=5x-
8
5
x=
3
1
×45
4X-3×
15
4
=
5
1
3X-
2
1
=
2
1
X÷
7
16
×16=28
X-
5
2
X=30
3
1
X÷
4
3
=12
4
1
X+12=36
竖式计算并验算
4.5÷1.84.2÷3.52.7÷454.2÷3.5
1624÷56=4.5×5.02=73.05-3.96=
2.08×1.4=3.12÷15=6700×1.3=
54×63=25×38=36×19=774÷8=
508÷2=370÷5=19×47=900÷5=
2.03×34=392÷4=360×5=320×68=
203÷9=63×36=26×38=770÷5=
696÷2=882÷4=809÷8=56×79=
64×28=820÷3=630÷6=458÷4=
4+0.6=7.3-2.9=10-0.7=8.2-5=
6.5+4.7=1.2-0.3=4.6+2.4=3.8+6.6=
估算
238÷6≈876÷3≈417÷6≈753÷5≈
89×30≈32×48≈43×22≈52×68≈
890÷9≈459÷50≈417÷60≈351÷5≈
65×11≈76×11≈27×19≈45×19≈
53×21≈84×21≈38×21≈35×21≈
求下面各比的比值
0.15︰0.3=0.8︰
2
1
=0.125︰
8
5
=
0.6︰0.16=0.75︰
4
3
=
12
7
︰
8
3
=
化简下面各比
32︰16=0.15︰0.3=
4
3
︰0.25=
150cm︰2m=0.5小时︰45分=1250g︰
8
1
kg=
单位换算
3日=()小时48个月=()年
35天=()星期4时20分=()分五
月份=()天5年=()月
3平方米=()平方分米138秒=()分()秒
32平方分米=()平方厘米3厘米=()分米
300公顷=()平方千米80000平方米=()公顷
1元2分=()元6厘米=()米
13平方千米=()公顷
1990是()年,2月有()天。9分米=()米
6.02米=()米()分米()厘米
3.7平方分米=()平方毫米5.80元=(元()角
()分米=1.5米()吨()千克=4.08吨
510米=()千米5米16厘米=()米
5千克700克=()千克0.95米=()厘米
4700米=()千米3650克=()千克
40.06吨=()千克1.4平方米=()分米
360平方米=()公顷7.05米=()米()厘米
5.45千克=()千克()克
3千米50米=()千米()时=30分
3千克500克=()千克()时=2时45分
2.78吨=()吨()千克0.25时=()分
504厘米=()米4.2米=()米()厘米
10米7分米=()米0.06平方千米=()公顷
9千克750克=()千克8.04吨=()吨()千克
6.24平方米=()平方分米
4千克=()克6000克=()千克
()克=5千克10千克=()克
7千克=()克2000克=()千克
1千克=()克9000克=()千克
1吨=()千克()吨=3000千克
8000千克=()吨40吨=()千克
3千克=()克50000克=()千克
4吨=()千克5000克=()千克
()t=3000kg5000g=()kg
9000kg=()t16t=()kg
3000千克-2000千克=()吨
1吨-300千克=()千克
3米=()厘米7000克=()千克
3时=()分6分15秒=()秒
5400千克=()吨()千克5米6分米=()分米
240分=()时6时35分=()分
75分=()时()分180秒=()分
1时=()分1时40分=()分
80秒=()分()秒1分8秒=()秒
8.2吨=()千克1.25平方米=()平方分米
4小时=()分2.5升=()毫升
4.06千米=()分米3.8公顷=()平方米
1/100米=()厘米3立方分米=()立方厘米
4080克=()千克120米=()千米
37分=()元()角150秒=()分
180000平方米=()公顷350立方厘米=()立方分米
1650毫升=()升1010千克=()吨
4小时15分=()小时7千米70米=()千米
1平方米2平方分米=()平方米
4分米5厘米=()分米=()厘米
4.15小时=()小时()分2.07千米=()千米()米
7.05升=()升()毫升1.3吨=()吨()千克
3.4小时=()小时()分8.5吨=()吨()千克
3.02立方米=()立方米()立方分米
50.06公顷=()公顷()平方米
0.32米=()分米()厘米2.3升=()升()毫升
4.05平方米=()平方米()平方分米
4.15立方米=()立方分米=()立方米()立方分米
3小时20分=()小时=()分
40千克60克=()千克=()克
198厘米=()分米=()米
1吨-320千克=()千克
480毫米+520毫米=()毫米=()米
7008千克=()吨()千克
4米7厘米=()厘米1米-54厘米=()厘米
830克+170克=()克=()千克78分=()小时()分
0.15千克=()克3.001吨=()吨()千克
3.7平方分米=()平方毫米5.80元=()元()角
(15)分米=1.5米4吨80千克=()吨
510米=()千米5米16厘米=()米
5千克700克=()千克0.95米=()厘米
4700米=()千米3650克=()千克
40.06吨=()千克1.4平方米=()平方分米
360平方米=()公顷7.05米=()米()厘米
5.45千克=()千克()克
3千米50米=()千米()时=30分
3千克500克=()千克()时=2时45分
2.78吨=()吨()千克0.25时=()分
504厘米=()米4.2米=()米()厘米
10米7分米=()米6.06平方千米=()公顷
9千克750克=()千克8.04吨=()吨()千克
6.24平方米=()平方分米7吨90千克=()吨
5米=()分米50000米=()千米
6元8角=()元50厘米=()米
5厘米=()米280克=()千克
28克=()千克7吨900千克=()吨
400厘米=()米6000千克=()吨
3吨500千克=()千克3600千米=()千米()米
1吨-320千克=()千克7008千克=()吨()千克
480毫米+520毫米=()毫米=()米