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Rational Numbers
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Expressions and Equations
GCF/LCM
100
What is the square root of 144?
12
100
How many grams is equivalent to 1.5 kilograms? 1 kilogram = 1,000 grams
1,500 grams
100
1/5+2/5
3/5
100
What is the value of n in the equation below? 2n + 1 = 21
n = 10
100
What is the least common multiple (LCM) of 15 and 10?
15, 30 10, 20, 30 LCM = 30
200
Which number is square root of 196?
14
200
Which of these is a unit of measure for the mass of a bag of apples? a. kilogram b. kilometer c. cubic inches d. square inches
a. kilogram
200
2/5 x 4/7
8/35
200
Simplify the expression below. –4x - (–x)
-3x
200
What is the greatest common factor (GCF) of 108 and 420 ? A. 6 B. 9 C. 12 D. 18
c. 12
300
The square root of a number is between 8 and 9. Which of these could be that number? a. 17 b. 63 c. 71 d. 89
c. 71
300
Tiwana wants to measure the volume of her fish tank. Which tool is best for her to use? a. scale b. tape measure c. measuring cup d. let Ms. Keniry estimate
b. tape measure
300
4/7 + 3/21
15/21 = 5/7
300
What is the value of the expression? 2 + 3 x 3 + | –4 |
15
300
What is the greatest common factor (GCF) of 64 and 84 ? a. 2 b. 4 c. 6 d. 8
b. 4
400
Between which two integers does the square root of 29 lie?
Between 5 and 6
400
What is the volume, in square inches, of a rectangular prism that has a length of 10 inches, a width of 5 inches, and a height of 6 inches? Surface Area = 2wl + 2lh + 2wh
volume = 300 sq. in.
400
1/6 divided by 2/3
3/12 = 1/4
400
Find the value of a in the equation below. 3a + 2 = a - 6
a = -4
400
Mario walks his dog once every 8 days in the park, while Todd walks his dog once every 14 days. Today, both Mario and Todd walked their dogs in the park. In how many more days will both boys walk their dogs in the park on the same day?
8,16,24, 32, 40, 48, 56 14, 28, 42, 56 They will walk their dogs in the park together in 56 days.
500
What is the square root of 169?
13
500
The flower box in front of the main city library weighs 124 ounces. What does the flower box weigh in pounds? 1 pound = 16 ounces
7 3/4 pounds
500
(1/4 x 2/5) / 5/10
=2/20 divided by 5/10 =20/100 = 1/5
500
Simplify the expression (-4)(3)(-1)(-2).
-24
500
What is the greatest common factor (GCF) of 450 and 735 ? A. 3 B. 5 C. 15 D. 35
c. 15