列式解答．（1）236乘150的积，减去17371，差是多少？（2）154减去49除以7的商，所得的差再乘15，结果是多少？
你能直接写出下列各题的结果吗？试试看×=÷=××= 4.5%=×12=÷4= （+）×== %
计算．×÷÷××÷6×÷7÷．
直接写得数．= 24÷======
直接写出得数． 12×=÷= 0÷=﹣= 12×（×）=×=÷= 20÷=+=×90×=
直接写出得数：×12= 1÷=×=+=÷2= 6﹣= 0÷=×=÷=﹣=
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×12= 1÷
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