用线把相等的数连一连.
怎样简便就怎样算.58×99+58 101×88 125×32×25117+48+52+83 88×125 336﹣156﹣144.
用简便方法计算:(要写计算过程.)①25×125×8×40 ②52×66+33×52+52 ③37×99 ④45×101.
用简便方法计算.1.25×3.2×0.8 14.5×102 4.38÷0.125÷0.8 6.4×4.5+3.6×4.5.
怎样算简便就怎样算5.5×17.3+6.7×5.5 4×3.09×0.25 9.07﹣22.78÷3.4.
简便计算.9.6+1.8﹣1.6 0.21+3.48+0.89+2.52 15.3﹣(0.91+2.3)