几道五年级乘法托式简算题：
63乘10.1
=63×（10+0.1）
=630×10+63×0.1
=630+6.3
=636.3
25.6-9.9
=25.6-10+0.1
=15.6+0.1
=15.7
6.41乘10.1
=6.41×10+6.41×0.1
=64.1+0.641
=64.741
2.63乘9.9
=2.63×（10-0.1）
=2.63×10-6.23×0.1
=26.3-0.263
=26.073
7.61乘9+7.61
=7.61×（9+1）
=7.61×10
=76.1
3.25-0.84-1.16
=3.25-（0.84+1.16）
=3.25-2
=1.25