《2025年天天练口算四年级数学上册人教版》

1
连一连
25×3
17×2
15×3
15×4
16×5
26×2
小于50
大于50

答案： 小于50：17×2，15×3，26×2
大于50：25×3，15×4，16×5

9×2+7=25
2×8+7=23
640÷8=80
6×6+7=43
4×8+8=40
3000÷5=600
3×3+8=17
3×5+8=23
400÷4=100
4×9+5=41
2×8+4=20
3600÷9=400
7×4+6=34
3×9+4=31
220÷2=110
7×7+6=55
4×7+5=33
3500÷7=500
9×6+2=56
7×8+5=61
150÷3=50
6×5+4=34
2×7+8=22
2500÷5=500
7×9+5=68
9×5+7=52
3000÷6=500
8×6+3=51
7×5+5=40
4200÷2=2100
6×7+8=50
3×5+8=23
4800÷4=1200
4×7+2=30
6×3+4=22
930÷3=310
4×6+6=30
9×8+4=76
2000÷4=500

答案： 解析：这些题目都是基础的数学运算题目，包括乘法和除法，以及加法运算。
答案：
$9×2+7 = 25$
$2×8+7 = 23$
$640÷8 = 80$
$6×6+7 = 43$
$4×8+8 = 40$
$3000÷5 = 600$
$3×3+8 = 17$
$3×5+8 = 23$
$400÷4 = 100$
$4×9+5 = 41$
$2×8+4 = 20$
$3600÷9 = 400$
$7×4+6 = 34$
$3×9+4 = 31$
$220÷2 = 110$
$7×7+6 = 55$
$4×7+5 = 33$
$3500÷7 = 500$
$9×6+2 = 56$
$7×8+5 = 61$
$150÷3 = 50$
$6×5+4 = 34$
$2×7+8 = 22$
$2500÷5 = 500$
$7×9+5 = 68$
$9×5+7 = 52$
$3000÷6 = 500$
$8×6+3 = 51$
$7×5+5 = 40$
$4200÷2 = 2100$
$6×7+8 = 50$
$3×5+8 = 23$
$4800÷4 = 1200$
$4×7+2 = 30$
$6×3+4 = 22$
$930÷3 = 310$
$4×6+6 = 30$
$9×8+4 = 76$
$2000÷4 = 500$