搜索

苏教版四年级上册数学补充习题第64页答案

2023-10-26 19:21| 查看: 485

5.四则混合运算练习
1.算一算,比一比。
300+180÷5×2 
=300+36x2
=300+72
=372

600÷30-10+5
=20-10+5
=10+5
=15  

(300+180÷5)×2
=(300+36)x2
=336x2
=672

600÷[30-(10+5)]
=600÷(30-15)
=600÷15
=40

2.计算。
32×18-540÷45
=576-12
=564

(900-16×35)÷34
=(900-560)÷34
=340÷34
=10  

840÷[15×(32-28)] 
=840÷(15x4)
=840÷60
=14

26×[(144+36)÷36]
=26x(180÷36)
=26x5
=130
关于本站|免责声明|皖ICP备2022017256号|普学网