Question

1+ 5 6 =	2- 1 2 =	4 7 - 3 28 =	1.2×0.01=
9 8 - 4 7 - 3 7 =	1 2 ÷ 2 5 =	6× 2 3 =	2 3 × 3 8 =
5 6 ÷6=	3÷4+ 1 4 =

Answer 1

分析：根據(jù)分?jǐn)?shù)的加減乘除與小數(shù)的乘法進(jìn)行計(jì)算即可；

9

8

-

4

7

-

3

7

=

9

8

-（

4

7

+

3

7

）可以進(jìn)行簡(jiǎn)算．

解答：解：

1+ 5 6 =1 5 6 ，	2- 1 2 =1 1 2 ，	4 7 - 3 28 = 13 28 ，	1.2×0.01=0.012，
9 8 - 4 7 - 3 7 = 1 8 ，	1 2 ÷ 2 5 = 5 4 ，	6× 2 3 =4，	2 3 × 3 8 = 1 4 ，
5 6 ÷6= 5 36 ，	3÷4+ 1 4 =1．

點(diǎn)評(píng)：口算時(shí)，看清數(shù)據(jù)和運(yùn)算符號(hào)再進(jìn)行計(jì)算，能簡(jiǎn)算的要簡(jiǎn)算．