脱式计算
|
| (1)840÷6-16×8 =140-128 =12; (2)180-(325-900÷5) =180-(325-180) =180-145 =35; (3)(107-63)×(375÷15) =44×25 =1100; (4)432-(56-64÷4) =432-(56-16) =432-40 =392; (5)48-25.06+24.6 =22.94+24.6 =47.54; (6)990÷[2×(17+28)] =990÷[2×45] =990÷90 =11. |
关注公众号回复:奥数答案
即可免费获得密码查看答案
