小学数学常考【简便运算】专项计算题
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简介
1.16×77+16×23 =16×(77+23) =16×100 =1600 2.28×30+30×22 =30×(28+22) =30×50 =1500 3.32×27+18×27 =27×(32+18) =27×50 =1350 4.125×64 =125×8×8 =1000×8 =8000 5.76×101 =76×(100+1) =76×100+76×1 =7600+76 =7676 6.695-134+105-166 =(695+105)-(134+166) =800-300 =500 7.56+31+24 =(56+24)+31 =80+31 =111 8.615+475+125 =615+(475+125) =615+600 =1215 9.125×64 =125×8×8 =1000×8 =8000 10.89+101+111 =101+(89+111) =101+200 =301
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