将球装入两种盒子中, 每个大盒子装12个, 每个小盒子装5个,正好装完。如果弹子数为99,盒子数大于9,大盒和小盒各多少个?
脱式计算(能简算的要简算). (1)12.5×(36﹣7.2)÷3.6 (2)33.33×3334+22.22×9999 (3)8.4×2012.1+(2012.1+12.5)×1.6 (4)7.5×2.3+1.9×2.5+12.5×0.4 (5)(1+1.2)+(2+1.2×2)+(3+1.2×3)+…+(99+1.2×99)+(100+1.2×100)
下面每题,怎样算简便就怎样算 36.8﹣6.8÷0.50.125×32×0.251.25×8.8 73÷4+2.7×0.253.75÷[0.3×(1.34﹣0.84)].
计算,能简算的要简算. 0.32×2.5×12.53.6×0.81+0.36×1.94.05÷[1.8×(3.36﹣2.86)].
计算下面各题,能简算的要简算. 5.95÷(1.2+0.5)×575÷(0.75×4) 0.8×0.68×12573.5×0.1+7.35×9.
计算下面各题,能简算的要简算. 8.5×〔(2.36+2.42)÷0.25〕 3.9÷(1.3+0.6)×6205×99 4.25×6.3+3.7×4.2525.6﹣7.49﹣2.51〔2.5﹣(6.8﹣4.9)〕×0.8.