(要用运算定律)
问题描述:
(要用运算定律)
46.3X0.56+5.38X5.6-0.056
11X22+0.22X3300+330x4.4
答
46.3X0.56+5.38X5.6-0.056=46.3X0.56+53.8X0.56-0.56×0.1=0.56×﹙46.3+53.8-0.1﹚=0.56×100=5611X22+0.22X3300+330x4.4=11X22+22×33+33×2×22=22×﹙11+33+66﹚=22×110=2420...