第五、六单元自主检测1.74+87 32x5024+76 25x425x(29+71) (62-12)x461+39 4x82.55x42+55x18 (42+18)x5538x43+37x38 (43+37)x3855x42-55x18 (42-18)x5538x43-37x38 (43-37)x383.=386+(254+46)=386+300=686=500+(4+536)=500+540=1040 =25x4x8=100x8=800=35x(65+35)=35x100=3500=75x(141-41)=75x100=7500=630÷9÷2÷5=70÷(2x5)=70÷10=7【请关注零五网:https://www.05wang.com/】4.(1)46+37+63+54=(46+54)+(37+63)=100+100=200(2)最多:(63+54)x5=117x5=585元最少:(46+3 |