Question

12.5×10.1+2.5x0.1怎么简便运算？

Answer 1

脱式计算12.5×10.1+2.5×0.1
解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行
解题过程:
12.5×10.1+2.5×0.1

=126.25+2.5×0.1

=126.25+0.25

=126.5

扩展资料&竖式计算-计算过程:先将两乘数末位对齐,然后分别使用第二个乘数,由末位起对每一位数依次乘上一个乘数,最后将所计算结果累加即为乘积,如果乘数为小数可先将其扩大相应的倍数,最后乘积在缩小相应的倍数；
解题过程:
步骤一:1×125=125

步骤二:0×125=0

步骤三:1×125=12500

根据以上计算步骤组合结果为126.25

存疑请追问,满意请采纳

Answer 2

=12.5x（10+0.1）+0.25

=125+1.25+0.25

=126.25+0.25

=126.5

望采纳

Answer 3

12.5×10.1+2.5x0.1
=12.5×10+12.5*0.1+2.5x0.1
=125+1.25+0.25
=126.5

Answer 4

12.5×10.1+2.5×0.1
=12.5×（10+0.1）+2.5×0.1
=12.5×10+12.5×0.1+2.5×0.1
=125+1.25+0.25
=125+1.5
=126.5

Answer 5

12.5x10.1+2.5x0.1
=12.5x(10+0.1)+0.25
=125+1.25+0.25
=125+1.5
=126.5