| (1)0.8+ | (2)1÷ | (3)7÷1.25=______ |
| (4)0.36+0.4=______ | (5) | (6)1.25×7.2+2.8×1.25=______. |
解:
| (1)0.8+ | (2)1÷ | (3)7÷1.25= |
| (4)0.36+0.4=0.76 | (5) | (6)1.25×7.2+2.8×1.25=12.5. |
故答案为:1.8,1,
,0.76,
,12.5.
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| 口算 3.2×0.2 |
1.4×0.4 | 3.3÷3 | 1.2÷0.3 |
| 2.5×0.4 | 1.5×2 | 0.7×7 | 7.3+0.3 |
| 0.53-0.3 | 1.8×0.5 | 0.9×0.01 | 0.23×3 |
| (5)2-1.2 | 7.8÷6 | 8.4÷0.21 | 8.4÷0.7 |
| 5.6+3.6 | 9-2.35 | 0.56÷8 | 1.23×3 |
| 5.6÷0.4 | 4.5÷0.9 | 8.1×2 | 90÷3 |
| 1.23+3 | 5.6+1.23 | 4.5×2 | 5.6÷1.4 |
| 4.8÷1.2 | 7.2÷0.9 | 6.6÷1.1 | 7.2÷6 |
| 2.1÷3 | 0.6×0.5 | 3.23×2 | 1.8÷3 |
| 12.5÷0.1 | 0.32÷0.8 | 1.6+3.7 | 0.45×0.2 |
| 0.36÷1.8 | 0.4×0.5 | 8.4+5.6 | 8.4÷2.1 |
| 4.8÷0.08 | 4.8÷0.8 | 3+2.3 | 9.3÷3 |
| 0.01×8 | 7.31×100 | 0.09×6 | 0.8×0.6 |
| 1.25×8 | 3÷5 | 2.3+2.3 | 6.23+3.6 |
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| 0.2+0.15= | 0.32+0.5= | 1.3-0.8= | 8.7-0.4= | 2-0.07= |
| 6.2-0.15-0.85= | 0.23+0.57= | 0.26+0.35= | 3.5÷10= | 5.3×100= |
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| 直接写出得数 6.3÷9= |
4.2÷2.1= | 8-2.6= | 4×1.5= | 0.32+0.8= |
| 1.7+0.25= | 0.84÷4= | 4.4÷0.2= | 5.6÷1.4= | 4+2.06= |
| 6.3÷0.09= | 8.8÷1.1= | 0.4×0.8= | 5.2÷13= | 0÷2.5= |
| 3.4-1.7= | 11.9+8.1÷9= | 3.6-3.6÷3.6= | 4.5÷5÷2= | 1.25×7×0.8= |
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| 口算: 26.26÷26= |
4.57+6.43= | 7.9×11-7.9= | 3.14×32= | ||||||||||
3+
|
0.1×30%= | 2÷1%-2= |
| ||||||||||
| 1.8×4×0.5= | 1.5-1.5×0.3= | 5.7+4.3= | 1-25%= | ||||||||||
18×
|
|
3.6÷12= | 18÷
| ||||||||||
|
|
|
1-0.6= | ||||||||||
| 0.92-0.2= | 0.52+0.4= | 0.72÷0.9= | 0÷0.24= | ||||||||||
| 3.3÷0.1= | 1÷0.25= | 0.6×5= | 0.2×0.4= | ||||||||||
| 0.25×36= |
|
|
4÷
| ||||||||||
|
|
10÷
|
3.5+47= | ||||||||||
| 0.4×12×25= | 10×
|
260-48-52= | 3.6÷12= | ||||||||||
18÷
|
5.7+4.3= | 0.25×36= |
| ||||||||||
| 0.4×12×25= |
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