题目内容
脱式计算
| 23×(34+58) | 1500-125×8 | 15×80÷3 | 72+18×20. |
(1)23×(34+58),
=23×92,
=2116;
(2)1500-125×8,
=1500-1000,
=500;
(3)15×80÷3,
=1200÷3,
=400;
(4)72+18×20,
=72+360,
=432.
=23×92,
=2116;
(2)1500-125×8,
=1500-1000,
=500;
(3)15×80÷3,
=1200÷3,
=400;
(4)72+18×20,
=72+360,
=432.
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