0.56×2.02=4.6×1.9+5.4×1.9=6.5×12.8-6.5×2.8=1.25×0.63×0.8=3.69×9+3.69=0.03×0.5×0.6=2.73×99=1.6×7.5×1.25=0.45×72+45×0.18+4.5=

Question

0.56×2.02=
4.6×1.9+5.4×1.9=
6.5×12.8-6.5×2.8=
1.25×0.63×0.8=
3.69×9+3.69=
0.03×0.5×0.6=
2.73×99=
1.6×7.5×1.25=
0.45×72+45×0.18+4.5=

Answer 1

0.56×2.02=(2+0.02)×0.56=1.1312
4.6×1.9+5.4×1.9=（4.6+5.4）×1.9=19
6.5×12.8-6.5×2.8=6.5×(12.8-2.8)=65
1.25×0.63×0.8=1×0.63=0.63
3.69×9+3.69=3.69×（9+1）=36.9
0.03×0.5×0.6=0.03×0.03=0.0009
2.73×99=（100-1）×2.73=270.27
1.6×7.5×1.25=2×7.5=15
0.45×72+45×0.18+4.5=45×(0.72+0.18+0.1)=45