Question

45*0.78 5.5*7.8的简便计算？

Answer 1

数学上的简便运算，一般是利用加法的交换律乘法的交换律乘法的结合律来进行计算的
所以45*0.78-5.5*7.8=4.5*7.8-5.5*7.8=(4.5-5.5)*7.8=一1*7.8=一7.8

Answer 2

45×0.78+5.5×7.8
=4.5×7.8+5.5×7.8
=7.8×(4.5+5.5)
=7.8×10
=78

Answer 3

45*0.78 5.5*7.8的简便计算？
45*0.78+5.5*7.8

=4.5*7.8+5.5*7.8
=7.8x(4.5+5.5)
=7.8x10
=78

Answer 4

45×0.78+5.5×7.8
=4.5×10×0.78+5.5×7.8
=4.5×7.8+5.5×7.8
=7.8×（4.5+5.5）
=7.8×10
=78

Answer 5

您好😀，很高兴为您解答。
45×0.78+5.5×7.8
=4.5×7.8+5.5×7.8
=7.8×(4.5+5.5)
=7.8×10
=78
希望对您有帮助，祝您幸福快乐每一天！🙏🏻🙏🏻🙏🏻