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口算题 轻松又愉快.251+149=72÷0.8=10-0.91=1.5×0.5=10÷0.
问题详情
251+149=
参考答案
251+149=400,72÷0.8=90,10-0.91=9.09,1.5×0.5=0.75,10÷0.2=50,560÷16÷5=7,0.25-15=0.05,4×25-25=75,0.333×3≈1,4.78-2.11-0.89=1.78,1-37+47=87,1÷13-13÷1=223.
考点:口算
251+149=400,72÷0.8=90,10-0.91=9.09,1.5×0.5=0.75,10÷0.2=50,560÷16÷5=7,0.25-15=0.05,4×25-25=75,0.333×3≈1,4.78-2.11-0.89=1.78,1-37+47=87,1÷13-13÷1=223.