题目内容
计算:
| 3.25÷0.25÷0.4 | 12.5×5.6 | 0.98+9×0.98. |
①3.25÷0.25÷0.4,
=3.25÷(0.25×0.4),
=3.25÷0.1,
=32.5;
②12.5×5.6,
=12.5×8×0.7,
=100×0.7,
=70;
③0.98+9×0.98,
=0.98×(9+1),
=0.98×10,
=9.8.
=3.25÷(0.25×0.4),
=3.25÷0.1,
=32.5;
②12.5×5.6,
=12.5×8×0.7,
=100×0.7,
=70;
③0.98+9×0.98,
=0.98×(9+1),
=0.98×10,
=9.8.
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