题目内容
| 脱式计算. t81÷26+t3 | 646-9×34 | 96×(326-296) |
| (963-t49)÷1t | 26×(28+42) | 641÷(29+61) |
(1)280÷26+23
=30+23
=103;
(2)546-9×34
=546-306
=240;
(3)96×(325-295)
=96×30
=2880;
(4)(953-249)÷12
=204÷12
=12;
(5)25×(28+42)
=25×20
=1250;
(6)640÷(29+51)
=640÷80
=8.
=30+23
=103;
(2)546-9×34
=546-306
=240;
(3)96×(325-295)
=96×30
=2880;
(4)(953-249)÷12
=204÷12
=12;
(5)25×(28+42)
=25×20
=1250;
(6)640÷(29+51)
=640÷80
=8.
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