发布网友 发布时间:2024-10-01 06:50
共0个回答
=900-137 =763
217-139减61用梯等式并且用简便方法=217-200 =17
用简便方法计算下面各题28.4-6.9=21.528.4-6.9=28.4-(7-0.1)=28.4-7+0.1=21.4+0.1=22.4 11.2-4.7-5.3=11.2-(4.7+5.3)=11.2-10=1.2 125*24=125*4*6=500*6=3000 13.7*0.25*8=13.7*(0.25*8)=13.7*2=27.4 31.5/45==31.5/5/9=6.3/9=0.7 2.65*1.7+1.315*1.7=(2.65+1....
6300除以700用商不变的规律在有简便方法计算=(6300÷100)÷(700÷100)=63÷7 =9
用简便方法计算。125x3232x25125×3232×25 =125×(32×101)×25 =125×(8×4×101)×25 =(125×8)×101×(4×25)=1000×101×100 =10100000
0.12乘80×1点二五简便方法怎么算0.12*80×1.25 =0.12*(80*1.25)=0.12*100 =12
101×5.4用简便方法计算和32×0.25×1.25用简便计算101*5.4=(100+1)*5.4=100*5.4+5.4=540+5.4=545.4 32*0.25*1.25=4*8*0.25*1.25=(4*0.25)*(8*1.25)=10