GRADE 7 ANSWERS
7
GRADE 8 ANSWERS
8
Number Sense
1. neither [ The two amounts are equal. ]
2. 121, 169, 289, 361 (4 points)
(112, 132, 172, 192) (2 points)
3. $14.50
4. $84.80
5. 4 [ times greater ]
Number Sense
1. $14.50
2. $84.80
3. 1/4 (or .25)
4. 7
5. (a)
Measurement
1. 27.5 or 27 1/2
2. 24
3. 18 hours
4. 25 hours and 27 minutes or
25 hours and 26 minutes
(Answer depends on use of 
button
or use of 3.14 for .)
5. 3 3/4 cups (or 3.75 cups)
Measurement
1. 25 hours and 27 minutes or 25 hours and 26 minutes (Answer depends on use of button or use of 3.14 for .)
2. 2 + 4
unit lengths (or length units) [ 4 points ] or 2 + 2 + 
[ 2 points: ]
3. 63 hours
4. 3 half dollars, 4 quarters, 5 dimes, and 12 nickels
5. 3 cups
Probability & Statistics
1. 1/15 or 1:15 or 1 out of 15
[Give 2 pts. for .07 or 6.7% or
, etc. ]
2. 491,400
3. 15
4. 200
5. 1, 4, 6, 9
Probability & Statistics
1. 400
2. 20,475 or 491,400 / 24 [Give 2 pts. for 491,400.]
3. 5/8 or .625 or 62.5%
4. 3/25 or 6/50 [Give 2 pts. for .12 or 12%]
5. 1, 4, 6, 9
Algebraic Sense
1. 15 or 15 years
2. 13
3. 33
4. 98
5. 131
Algebraic Sense
1. 33
2. 98
3. 20
4. 461
5. 4n-12 or 4(n-3) [ Give 2 points for a correct word rule, such as, "Subtract 3 from the number & multiply this by 4." ]
Geometric Sense
1. 135 sq cm or 135 cm
22. 27
3. 
4. The perimeter of triangle A is 1/3 the
perimeter of triangle B (or B is 3 times A).
5. 79% (or simply 79)
[Give 2 pts. for 78.5% and 1 pt. for .785]
Geometric Sense
1. 135 sq cm or 135 cm
22. 48
3. The perimeter of triangle B is 3/5 the
perimeter of triangle C (or C is 5/3 B; also accept C is 1 2/3 B).
4. 
5. 14.8% or 14.9 % (or simply 14.8 or 14.9)