怎样简便就怎样算.
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| (1)2×125×25, =250×25, =6250; (2)999×1325, =(1000-1)×1325, =1000×1325-1×1325, =1325000-1325, =1323675; (3)0.45×22+4.5×7.8, =4.5×2.2+4.5×7.8, =4.5×(2.2+7.8), =4.5×10, =45; (4)88×125, =11×8×125, =11×(8×125), =11×1000, =11000; (5)17÷25÷4, =17÷(25×4), =17÷100, =0.17. |
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