Period IV subject: math full marks: 100,Distation: 80mintes.

(. )x8=1000

• 120

• 124

• 125

• 130

12345679x(. )=222222222

• 9

• 18

• 27

• 36

4.6+1.9+5.4

• 11.1

• 11.3

• 11.5

• 11.7

• 11.9

12341234x243–1234x243243=?

• 0

• 2

• 4

• None of the above

37.7+2.73=?

• 40.43

• 40

37.7+50+12.3=?

(You must write down how to do it.)

(a)  

3454 divide 25 divide 4

(You must write down how to do it.)

(a)  

3400 divide 25 =?

• 132

• 134

• 136

• 138

应用：甲数是8，乙数比甲数的2倍多4，求乙数。(要写出过程和答案。）

(a)  

一个工厂在生产1000个零件，每小时生产125个。改进技术后，原计划比实际情况的时间少用6个小时。实际每小时生产几个？

(a)