Review
Express the fraction 10/20 in its simplest form.
1/2
Round 37,830 to the nearest 1,000.
38,000
If Jane has 5 red marbles and 3 blue marbles, what is the ratio of red marbles to blue marbles?
5:3
50 cm of wire is bent to form a triangle in the ratio 1 : 2 : 2. What is the length of the shortest side?
10 cm
Is 7 is a factor of the 91?
Yes! (91 รท 7 = 13)
List the common factors of 12, 24 and 18.
1, 2, 3, 6
A container contained 4 liters of water. 2 liters of water was added.
What is the ratio of the amount of water in the container at first to the amount of water added?
2 : 1
The ratio of the number of students to teachers to administrators at New School is 13 : 6 : 1. There are 200 people at the school. How many more students than teachers are there?
70
Multiply 4 by 3/24.
1/2
Tom gave $200 to first grade and $300 to third grade. What is the ratio of the amount he gave to first grade to the total amount that he gave?
2 : 5
When building a fort, I need 20 kg of wood, 10 kg of nails, and 15 kg of bricks. What is the ratio of wood to bricks to nails?
4 : 3 : 2
Find the value of 123 x 6 - 321
417
4 + 5 x 2 - 6 / 2
11
A pie was cut into two in the ratio of 2 : 3. If the smaller piece weighed 40 g, how much did the whole pie weigh?
100 g
When building a fort, I need 20 kg of wood, 10 kg of nails, and 15 kg of bricks. How much wood do I need if my whole fort weighs 81 kg?
36 kg
Sam spend $200 on clothes. 1/4 was for shoes, 2/3 of the remainder was for sweaters, and the rest was for shirts. How much did Sam spend on shirts?
$50
The surface area of a cube with sides 2 cm long.
24 cm2
Jo paid $3 less for Magic cards than Bob did. The ratio of the amount Jo paid to the amount Bob paid was 3 : 4 . How much did Bob pay?
$12
The permiter of a rectangle is 18 m. It's width is 3 m. What is the ratio of its length to its width?
2 : 1