题目内容
______-25×4=30
______×4+18=50
24×4=______×______
(18+______)×3=120.
______×4+18=50
24×4=______×______
(18+______)×3=120.
(1)25×4+30
=100+30
=130
即:130-25×4=30;
(2)(50-18)÷4
=32÷4
=8
即:8×4+18=50;
(3)根据乘法交换律可知:
24×4=4×24;
(4)120÷3-18
=40-18
=22
即:(18+22)×3=40.
故答案为:130,8,4,24,22.
=100+30
=130
即:130-25×4=30;
(2)(50-18)÷4
=32÷4
=8
即:8×4+18=50;
(3)根据乘法交换律可知:
24×4=4×24;
(4)120÷3-18
=40-18
=22
即:(18+22)×3=40.
故答案为:130,8,4,24,22.
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