| 1248-289= | + = | 7.7× = | 1÷ = | 1÷7+ = |
10- = | 3.14×102= | 11.7+3= | 2.75- = | 0.15÷0.3= |
| 4÷25%= | 35÷10%= | 2002÷22= | ÷ = | + = |
| 0.8-0.06= | 100÷99= | 4×25%= | :3= | 0.125×5×8= |
| 1248-289=959, | + =4 , | 7.7× =5.5, | 1÷ = , | 1÷7+ =1, |
10- =3 , | 3.14×102=314, | 11.7+3=14.7, | 2.75- =2.25, | 0.15÷0.3=0.5, |
| 4÷25%=16, | 35÷10%=350, | 2002÷22=91, | ÷ =2, | + = , |
| 0.8-0.06=0.74, | 100÷99= , | 4×25%=1, | :3= , | 0.125×5×8=5. |
分析:0.125×5×8运用乘法交换律简算;其它题目根据运算法则直接求解.
点评:完成本题要根据运算法则认真分析式中数据,然后快速准确得出答案.
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