[color=red]Revision Sheets ( Model Answers ) 4[/color]

Chapter Test ( continued ) Form A
Chapter 3
12)p=2*8.6+2*2.5=22.2m
13)A=L*W=8.6*2.5=21.5 sq.m
14)9.6L=9600 ml
15)37.9g=0.0379 kg
16)3.5=r+2
17)276
18)Mean=3.42
19)Mediam=3.6
20)|Mode=3.6
21)Outliers=1.4
Chapter Test Form B
Chapter 3
1)B
2)J
3)A
4)J
5)y=16.784-4.56=12.224
6)x=-3.52
7)x=1.6
8)P=2*9.5+2*3.6=26.2 m
9)A=9.5*3.6=34.2 sq.m
Chapter Test ( continued ) Form B
Chapter 3
10)9200 ml
11)0.0428 km
12)351=54 t ; t=6.5 hr
13)Mean=11.6
14)Median=11.6
15)Mode=11.5
16)Outliers=None
Alternative Assessment
Chapter 3
1)Yes: $ 3+ $ 1+ $ 1= 5
2)Round each number to the nearest integer & Multiply
2.60(-24.83)=3(-25)=-75
3)x=7.95+3.09=11.04 Substitute by x=11.04
Subtract from * 3.09=7.95
4)0.350, 0.355; 0.354, 0.358; none,0.329
The mean and the median are both good measures of central tendency
5)The length of a book
Cumulative Review
Chapter 3
1)C
2)J
3)A
4)H
5)D
6)G
7)B
8)H
9)D
10)J
11)A
12)n>= -4
13)Mean=88.6 Median=86 Mode=86
14)1.24 m
15)x= -7.39
16)n= -5.12
17)7x=280
18)All weights cluster around one pound so total= 4.1=4 lbs
The cost= $1 per pounds Cost of shipping is about $4
Chapter Test Form A
Chapter 4
1)C
2)J
3)B
4)F
5)D
6)F
7)B
8)No.=30
9)2*2*3
10)J
11)1,2,5,10,11,22,55,110
13)Composite 3sq*7
14)prime
15)GCF=1
16)2xysq
Chapter Test ( continued ) Form A
Chapter 4
17)3\4
18)msqn\2
19)-0.7 , 20) -2\5 , 21) 3\10
22)8+4*-3 \ 6 = -2\3
23)3(-1)sq-(2)sq=-1
24)24
Chapter Test Form B
Chapter 4
1)C
2)G
4)xy \2 = 1*2 \2 = 1
6)1,2,5,7,10,14,35,70
7)prime
8)Composite 3 sq . 11
9)GCF=2
10)GCF=3xy cu
11)7\8
12)M^3 N^2\3
16)(9+3*-4) \ 12 =(9-12) \ 12 =-3 \ 12 =-1\4
17)No. of choices= 60
Alternative Assessment
Chapter 4
1)1=7\7=7^1-1=7^0 (hint ^ means power)
2) (-3)^2= -3 x -3= 9
But -3^2 = -(3x3) -9
9 not equal -9
So 9 is opposite to -9
3) x^2.x^4 .x= x.x.x.x.x.x.x= x^7 this means we add power
4)325= (65x5)=(5x13x5)
5)m/m+n= 4/4+10= 4/14= 2/7
Cumulative Review
Chapter 4
1. B
2. J
3. A
4. F
5. C
6. J
7. B
8. H
9. B
10. J
11. C
12. F
13. D
14. J
15. B
16. G
17. 6(X+3)= 6(5+3)=48
18. N/3.2= -0.25 N=-0.8
19. 1,2,4,7,8,14,28,56
20. 1- Poached egg with orange juice and toast
2- Poached egg with tomato juice and toast
3- scrambled egg with orange juice and toast
4- scrambled egg with tomato juice and toast
5- fried egg with orange juice and toast
6- fried egg with tomato juice and toast
There are 6 cobinations

Thanks a lot Tr. Ekram