题目
用你喜欢的方法计算。
(1)
35-1.37-0.63
(2)
0.65×6.4-0.65×5.4
(3)
5.01-1.9+4.99
(4)
0.5×99+0.5
答案: 35-1.37-0.63 =35-(1.37+0.63) =35-2 =33
0.65×6.4-0.65×5.4 =0.65×(6.4-5.4) =0.65×1 =0.65
5.01-1.9+4.99 =5.01+4.99-1.9 =10-1.9 =8.1
0.5×99+0.5 =0.5×(99+1) =0.5×100 =50