Question

心靈腦快． 1-0.89=	11 15 × 25 44 =	1 18 + 1 24 =
（ 1 4 + 1 12 ）×12=	2- 3 7 - 4 7 =	0.1÷0.01=
5.1÷ 3 4 =	4 5 ：0.2=	1 10 ×99+ 1 10 =
11÷ 1 11 × 1 11 ÷ 1 11 =

Answer 1

分析：根據(jù)分?jǐn)?shù)、小數(shù)加減乘除法的計(jì)算法則進(jìn)行計(jì)算即可，

1

10

×99+

1

10

根據(jù)乘法分配律簡算法，11÷

1

11

×

1

11

÷

1

11

從左向右計(jì)算．

解答：解：1-0.89=0.11         

11

15

×

25

44

=

5

12

          

1

18

+

1

24

=

7

72

 
（

1

4

+

1

12

）×12=4          2-

3

7

-

4

7

=1              0.1÷0.01=10
 5.1÷

3

4

=6.8              

4

5

：0.2=4             

1

10

×99+

1

10

=10  
11÷

1

11

×

1

11

÷

1

11

=121

點(diǎn)評(píng)：計(jì)算時(shí)，注意運(yùn)算符號(hào)和數(shù)據(jù)，能簡算的要簡算．