Question

小学数学。简便计算

4.6*0.25+5.4/4
8.2*9.9+82*0.01
16.25/(4/1.6*0.13)

Answer 1

很简单的，只要抓住乘除法的性质
4.6*0.25+5.4/4
=0.25×（4.6+5.4）
=0.25×10
=2.5
8.2*9.9+82*0.01
=8.2×9.9+8.2×0.1
=8.2×（9.9+0.1）
=8.2×10
=82
16.25/(4/1.6*0.13)
=16.25÷（2.5×0.13）
=16.25÷2.5÷0.13
=125÷0.25
=500
加油哦！

Answer 2

2.5
82
50

Answer 3

答案及过程：
4.6*0.25+5.4/4
=0.25×（4.6+5.4）
=0.25×10
=2.5
8.2*9.9+82*0.01
=8.2×9.9+8.2×0.1
=8.2×（9.9+0.1）
=8.2×10
=82
16.25/(4/1.6*0.13)
=16.25÷（2.5×0.13）
=16.25÷2.5÷0.13
=125÷0.25
=500

Answer 4

4.6*0.25+5.4/4
=0.25×（4.6+5.4）
=0.25×10
=2.5
8.2*9.9+82*0.01
=8.2×9.9+8.2×0.1
=8.2×（9.9+0.1）
=8.2×10
=82
16.25/(4/1.6*0.13)
=16.25÷（2.5×0.13）
=16.25÷2.5÷0.13
=125÷0.25
=500
不知对不对？

Answer 5

4.6*0.25+5.4/4
=0.25×（4.6+5.4）
=0.25×10
=2.5
8.2*9.9+82*0.01
=8.2×9.9+8.2×0.1
=8.2×（9.9+0.1）
=8.2×10
=82
16.25/(4/1.6*0.13)
=16.25÷（2.5×0.13）
=16.25÷2.5÷0.13
=125÷0.25
=500

Answer 6

4.6*0.25+5.4/4=（4.6+5.4）*0.25 = 10*0.25 = 2.5
8.2*9.9+82*0.01=8.2*（9.9+0.1）= 8.2*10 = 82
16.25/(4/1.6*0.13)=16.25/（2.5*0.13）=16.25/2.5/0.13=6.5/0.13=50