四年级两位数四则运算
(1)49+76+37 = (2)28×2+84 = (3)4÷1×1 = (4)36+69×4 = (5)9÷1-8 =(6)4×1÷1 = (7)6÷3+19 = (8)5×7÷1 = (9)8+52÷1 = (10)2+50÷1 =
(11)9÷1+53 = (12)9÷1×4 = (13)17×8×1 = (14)94-26-22 = (15)6÷1-3 =
(16)48+84×1 = (17)7×1÷1 = (18)7÷7×4 = (19)7÷1×5 = (20)4÷1×2 =
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