2012 —— 2011Siming district qunhui primary school fourth grade mathematics final examination paper.

1, isosceles, right angle, equilateral

2,306.9 million 387.33 million

3,90.38, two people

4, 1000 times,1000 times.

5、 1 10

6、7. 10 ,7. 1

7、9.54,9.45

8、9.02

9、gt； ，=，& gt，& gt

Second, wrong, right, wrong, wrong.

Third,

1、C

2、D

3. The topic is wrong

4、D

5、B

Iv. 1,121000.13 200 960

0.94 5.5 75 0.56

2、 1.=4 15-( 176+24) 2.=(8.29+0.7 1)+(3.7+6.3)

=4 15-200 =9+ 10

=2 15 = 19

3.= 125×8×89 4.=(428+572)×78

= 1000×89 = 1000×78

=89000 =78000

Six, 1, 39 x 5÷ 3 = 65

2、50-28.75-6.35= 15

3、(50+25)×8=600

4、38÷2×4=72