1.36×2.7+1.36×7.3 | 23×
|
1-(
| ||||||||||
456-25×4÷8 | 6.23-1.75-2.25 | 375×99. |
解:(1)1.36×2.7+1.36×7.3, =1.36×(2.7+7.3), =1.36×10, =13.6; (2)23×
=
=
=30; |
||||||||||||||||||
(3)[1-(
=[1-
=
=
(4)456-25×4÷8, =456-100÷8, =456-12.5, =443.5; (5)6.23-1.75-2.25, =6.23-(1.75+2.25), =6.23-4, =2.23; (6)375×99, =375×(100-1), =37500-375, =37125. |
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直接寫出得數(shù). 1.8÷3= |
4.7+1.3= | 9.36÷1.8= | 0.8×0.5= |
1.25×0.8= | 2.6÷0.2= | 8.1÷0.03= | 1×0.4= |
8.7÷0.3= | 6.25×8= | 1.01×0.9= | 0.9÷0.01= |
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人數(shù)(人) | 4 | 18 | |
占全班人數(shù)的百分比 | 36% | 56% |
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1.36×2.7+1.36×7.3 | 23×+57÷ | 1-(-)〕× |
456-25×4÷8 | 6.23-1.75-2.25 | 375×99. |
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