直接写得数．（每题0.5分，共计6分）
500÷5= 80×50= 56+34= 2700÷9= 2.3+3.4= 5.3﹣3.5=
8+4.7= 12×200= 9﹣3.5= 15×20= 0÷23= 2000÷4=
直接写得数．（每题0.5分，共计6分）
500÷5= 80×50= 56+34= 2700÷9= 2.3+3.4= 5.3﹣3.5=
8+4.7= 12×200= 9﹣3.5= 15×20= 0÷23= 2000÷4=
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