问题
解答题
用简便方法计算
|
答案
(1)8+6.85+1.6+2
=(8+2)+(6.85+1.6)
=10+8.45
=18.45;
(2)(108+45)÷9
=108÷9+45÷9
=12+5
=17;
(3)12÷1+5.25×2
=12+10.5
=22.5.
用简便方法计算
|
(1)8+6.85+1.6+2
=(8+2)+(6.85+1.6)
=10+8.45
=18.45;
(2)(108+45)÷9
=108÷9+45÷9
=12+5
=17;
(3)12÷1+5.25×2
=12+10.5
=22.5.