小学四年级数学180道简便计算题及答案
河北环境工程学院-表白
小学四年级数学180道简便计算题及答案 
1) 25×16×125
=25×2×8×125 
=50000 
=1287 
2) 13×99
=13×(100-1) 
=1300-13 
=1287 
3)
75000 ÷ 125÷ 15 
=75×1000÷125÷15
=75÷15×1000÷125 
=5×8 
=40 
4) 7900 ÷
4 ÷ 25 
=7900÷(4×25) 
=79 
5) 150 ×40÷ 50
=150÷ 50×40 
=3×40 
可编辑范本
=120 
6)5600 ÷ (25×7) 
=56×100÷
25÷ 7 
=56÷ 7×100÷ 25 
=32 
7) 39600 ÷ 25
=396×100÷25 
=396×4 
=1584 
8) 210 ÷
42×6 
=210÷ 7÷6×6 
=30 
9) 27000 ÷ 125
=27×1000÷125 
=27×8 
=216 
10)
654321×909090 +654321×90909 
=654321 ×999999
=654321 ×(100000-1) 
=654321000000-654321
11) 599996 + 49997 + 3998 + 407 + 89
=600000+50000+4000-4-3-2+407+89 
可编辑范本
=65400+487 
=65887 
12) (48 × 75
×81) ÷ (24 ×25 ×27) 
=48÷24×75÷25×81÷27 
=2×
3 × 3 
=18 
 
可编辑范本