9.8×5.5+9.8×4.4+98如何简便计算?

2025-04-08 22:26:34
推荐回答(2个)
回答1:

=9.8×(5.5+4.4+10)
=9.8×19.9
=9.8×(20-0.1)
=19.6-0.98
=19.6-1+0.02
=18.6+0.02
=18.62

回答2:

9.8 x 5.5 + 9.8 x 4.4 +98
=9.8 x (5.5 + 4.4 +10)
=9.8 x 19.9
=9.8 x (20-0.1)
=196 - 0.98
=195.02