Question

口算

1 3 + 1 4 =	10÷ 2 5 =	3 5 ÷ 9 10 =	1÷ 7 8 =
2 3 × 3 10 =	3 4 × 2 5 × 4 3 =	5× 1 10 + 1 2 =	8× 3 8 +8× 1 8 =
55× 1 11 ÷ 1 8 =	1 2 × 1 3 ÷ 1 2 × 1 3 =	0× 7 12 + 1 8 =	4 5 - 1 10 ×4=
2 1 4 ×2=	0.99×9+0.99=	9 4 × 1 27 =	1 1 2 ×8+1 1 2 ×2=

Answer 1

考点：分数的加法和减法,分数乘法,分数除法,分数的四则混合运算,小数四则混合运算

专题：计算题

分析：根据分数加减法和分数乘除法的计算方法进行计算，0.99×9+0.99和1

1

2

×8+1

1

2

×2根据乘法分配律来进行计算．

解答：

解： 1 3 + 1 4 = 7 12	10÷ 2 5 =25	3 5 ÷ 9 10 = 2 3	1÷ 7 8 = 8 7
2 3 × 3 10 = 1 5	3 4 × 2 5 × 4 3 = 2 5	5× 1 10 + 1 2 =1	8× 3 8 +8× 1 8 =4
55× 1 11 ÷ 1 8 =40	1 2 × 1 3 ÷ 1 2 × 1 3 = 1 9	0× 7 12 + 1 8 = 1 8	4 5 - 1 10 ×4= 2 5
2 1 4 ×2=4 1 2	0.99×9+0.99=9.9	9 4 × 1 27 = 1 12	1 1 2 ×8+1 1 2 ×2=15

点评：本题综合考查了学生基本的计算能力．