《2025年灵机一动小学数学口算心算三年级上册苏教版》

口算练习 39
1
$48÷4= $12
$800÷2= $400
$45÷3= $15
$60÷5= $12
$78÷6= $13
$84÷4= $21
$280÷7= $40
$360÷9= $40
$75÷5= $15
$84÷7= $12
$600÷6= $100
$450÷5= $90
$600÷3= $200
$66÷3= $22
$630÷3= $210
2
$42÷2= $21
$800÷4= $200
$660÷2= $330
$34÷2= $17
$360÷4= $90
$24÷2= $12
$39÷3= $13
$62÷2= $31
$96÷3= $32
$320÷4= $80
$99÷3= $33
$82÷2= $41
$480÷8= $60
$36÷2= $18
$42÷3= $14
3
$280÷4= $70
$88÷2= $44
$48÷6= $8
$345+125= $470
$180÷3= $60
$26÷2= $13
$90÷3= $30
$80÷8= $10
$64÷2= $32
$32÷2= $16
$48÷3= $16
$84÷2= $42
$60÷3= $20
$360÷6= $60
$52÷2= $26

答案： 解析：本题考查整数除法和加法的口算能力。
答案：
1
$48÷4 = 12$
$800÷2 = 400$
$45÷3 = 15$
$60÷5 = 12$
$78÷6 = 13$
$84÷4 = 21$
$280÷7 = 40$
$360÷9 = 40$
$75÷5 = 15$
$84÷7 = 12$
$600÷6 = 100$
$450÷5 = 90$
$600÷3 = 200$
$66÷3 = 22$
$630÷3 = 210$
2
$42÷2 = 21$
$800÷4 = 200$
$660÷2 = 330$
$34÷2 = 17$
$360÷4 = 90$
$24÷2 = 12$
$39÷3 = 13$
$62÷2 = 31$
$96÷3 = 32$
$320÷4 = 80$
$99÷3 = 33$
$82÷2 = 41$
$480÷8 = 60$
$36÷2 = 18$
$42÷3 = 14$
3
$280÷4 = 70$
$88÷2 = 44$
$48÷6 = 8$
$345 + 125 = 470$
$180÷3 = 60$
$26÷2 = 13$
$90÷3 = 30$
$80÷8 = 10$
$64÷2 = 32$
$32÷2 = 16$
$48÷3 = 16$
$84÷2 = 42$
$60÷3 = 20$
$360÷6 = 60$
$52÷2 = 26$