题目内容
脱式计算
| 921-(344+221) | 960-640÷16 | 200×73÷(543-178) |
| 160+240÷(36-24) | (100÷25+16)÷4 | 520×(80-720÷9) |
(1)921-(344+221),
=921-565,
=356;
(2)960-640÷16,
=960-40,
=920;
(3)200×73÷(543-178),
=200×73÷365,
=14600÷365,
=40;
(4)160+240÷(36-24),
=160+240÷12,
=160+20,
=180;
(5)(100÷25+16)÷4,
=(4+16)÷4,
=20÷4,
=5;
(6)520×(80-720÷9),
=520×(80-80),
=520×0,
=0.
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