6-1 Solve Comparison Problems
page 77
page 77
6-1
#1
p is 7 times as many as 14
p = 98
6-1
#7
Josie: 28 + 29 = 57
Martin: 10 x 57 = 570
570 baseball cards
6-2
#1
51 is 3 times as many as n
n = 51/3
n = 17
6-2
#5
3 times as much
n x 8 = 24
n = 3
7-2
#1
#2
#3
#1) 1 and 75 3 and 25 5 and 15
#2) 1 and 28 2 and 14 4 and 7
#3) 1 and 46 2 and 23
7-2
#16
#17
#16) 198 pencils
#17) No, 257/7 = 36 R5, so if Damita reads 36 pages each day, she will have to read 5 more pages on the last day.
6-2
#2
s is 123 more than 461
s = 584
6-1
#8
252 cards
6-2
#2
288 is 4 time as many as m
288/4 = m
m = 72
6-2
#6
36 years old
4 x 9 = a
a = 36
7-2
#4
#5
#6
#5) 1 and 77, 7 and 11
#6) 1 and 23 (prime number)
7-2
#18
#19
#18) 3 x b = 81
b = 27 buttons
#19) Sal has a 1 x 13 array or a 13 x 1 array
6-1
#3
c is 3 times as many as 617
c = 1,851
6-1
#9
3 x 16 = t
t = 48 trumpet players
6-2
#3
3 times as many as 42 is k
k = 3 x 42
k =126
6-2
#7
Yes, 654/3 is about 600/3 = 200
Hilary's answer of 218 is reasonable, because it is close to the estimate.
7-2
#7
#8
#9
#7) 1, 2, 37, 74
#8) 1, 2, 29, 58
#9) 1, 2, 4, 11, 22, 44
7-2
#20
1x24, 24x1, 2x12, 12x2, 3x8, 8x3, 4x6, 6x4
6-1
#4
b is 118 more than 192
b = 310
6-1
#10
18 + 12 = 30
m = 4 x 30
m = 120
120 musicians
6-2
#4
5 times as many as 56 is f
5 x 56 = f
f = 280
6-2
#8
n = 45 and m = 9
5 x 9 = 45
9 + 36 = 45
7-2
#10
#11
#12
#10) 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
#11) 1, 3, 19, 57
#12) 1, 2, 5, 10
7-2
#21
Mrs. Fisher
91 objects can be arranged in 91 rows of 1, 7 rows of 13, 13 rows of 7, 1 row of 91
6-1
#5
Tammy's dad worked 131 more hours in a half year than Louie's mom.
6-1
#11
[] j is 60 more than 17
[] A watermelon costs $4 more than a bag of apples. A bag of apples costs $5. How much does a watermelon cost?
[] 12 more than 20 is j
6-2
#9
D
7-2
#13
#14
#15
#13) 1, 7
#14) 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
#15) 1, 2, 3, 6, 11, 22, 33, 66
7-2
#22
3 arrays
1x9, 9x1, 3x3
There are 3 arrays, so it is odd. The array 3x3 does not have a different pair.
6-1
#6
Stella saved 9 times as much as her sister.
6-1
#12
[] 4 times as many as 8 is v
[] Linda had 8 violets and Carrie had v violets, which was 4 times as many
6-2
# 10
B
7-2
#23
#24
#23) C
#24) D