三年级上册 100 道脱式计算加减法 5 2 9 +1 5 6 +2 9 6 5 1 0 +3 3 4 -1 5 0 3 3 +(1 1 5 -5 5 ) 6 4...
1.25×(8+10) =1.25×8+1.25×10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8 =9000-8.8 =8991.2 1.24×8.3+8.3×1.76 =8.3×...
用脱式计算下面各题。125+25×6(135+75)÷(14×5)120-60÷5×51024÷16×3(135+415)÷5+161200-20×720-720÷15(360-144)÷24×...