1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40= 9
10.40×20= 800
11.80-25= 55
(12)2.3 × 2 = 4.6
(13)6.8 × 7 = 47.6
(14)6.7 × 0.3 = 2.01
(15)7.5 × 7 = 52.5
(16)7.1 × 0.7 = 4.97
(17)6.6 × 2 = 13.2
(18)3.5 × 0.2 = 0.7
(19)3.7 × 0.3 = 1.11
(20)4 × 0.3 = 1.2
(21)9.2 × 9 = 82.8
(22)6.1 × 9 = 54.9
(23)6.8 × 5 = 34 (
24)4.8 × 4 = 19.2
(25)4.1 × 2 = 8.2
25道笔算题五年级下册
1、若按乘除法规则算:25x4÷25x4=4x4=16; 2、若忘写括号,原题是25x4÷(25x4)=1。