Question

脱式计算能简算的要简算2.7×6.3+27×0.37？

Answer 1

2.7X6.3+27X0.37=2.7X6.3+2.7X10X0.37=2.7X(6.3+10X0.37)
=2.7X(6.3+3.7)=2.7X10=27

Answer 2

2.7×6.3+27×0.37＝27×0.63+27×0.37
＝27×（0.63+0.37）＝27×1＝27

Answer 3

2.7x6.3+27x0.37
=2.7x6.3+2.7x3.7
=2.7x(6.3+3.7)
=2.7x10
=27