高考问答迅雷5下载magnet:简便计算
来源：百度文库 编辑：高考问答 时间：2024/05/06 06:49:39
6.25×0.16+264×0.0625+5.2×6.25+0.625×
20
3.9÷0.17×5.1÷1.3
（6.4×7.2×4.9）÷（0.8×3.6×7）
20
3.9÷0.17×5.1÷1.3
（6.4×7.2×4.9）÷（0.8×3.6×7）
6.25×0.16+264×0.0625+5.2×6.25+0.625×20
=6.25×（0.16+2.64+5.2+2）
=6.25×（10+1）
=6.25×10+6.25×1
=62.5+6.25
=68.75
3.9÷0.17×5.1÷1.3
=(3.9÷1.3)÷(0.17÷5.1)
=3÷1×3
=9
（6.4×7.2×4.9）÷（0.8×3.6×7）
=(6.4÷0.8)×(7.2÷3.6)×(4.9÷7)
=8×2×0.7
=10.2
6.25×0.16+264×0.0625+5.2×6.25+0.625×20
=6.25×（0.16+2.64+5.2+2）
=6.25×（10+1）
=6.25×10+6.25×1
=62.5+6.25
=68.75
3.9/0.17*5.1/1.3
=3.9/1.3*5.1/0.17
=3*30
=90
（6.4*7.2*4.9）/（0.8*3.6*7）
=6.4/0.8*7.2/3.6*4.9/7
=8*2*0.7
=11.2
1、
6.25×0.16+264×0.0625+5.2×6.25+0.625×
20
=6.25×（0.16+2.64+5.2+2）
=6.25×（10+1）
=6.25×10+6.25×1
=62.5+6.25
=68.75
2、
3.9÷0.17×5.1÷1.3
=3.9÷1.3×5.1÷0.17
=3×30=90
3、
（6.4×7.2×4.9）÷（0.8×3.6×7）
=(6.4÷0.8)×(7.2÷3.6)×(4.9÷7)
=80×2×0.7
112