829﹣299 （1459﹣694）÷15×137 3962﹣（962+475）
（83+3706÷34）×22 10000﹣（39+65）×35 185+624+115+366．
829﹣299 （1459﹣694）÷15×137 3962﹣（962+475）
（83+3706÷34）×22 10000﹣（39+65）×35 185+624+115+366．
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×18= 
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×50%=
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÷5= 24÷
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