Third Grade Math Review

Subtract 14 from 36.

• 20

• 30

• 25

• 22

Answer explanation

To find the result of subtracting 14 from 36, perform the calculation: 36 - 14 = 22. Therefore, the correct answer is 22.

What is 8 x 7?

• 48

• 64

• 42

• 56

Answer explanation

To find 8 x 7, multiply 8 by 7. The result is 56, which is the correct answer. The other options (48, 64, 42) are incorrect.

If you have 3/4 of a pizza and eat 1/4, how much is left?

• 1/3

• 1/2

• 1/4

• 3/4

Answer explanation

You start with 3/4 of a pizza. If you eat 1/4, you subtract 1/4 from 3/4: 3/4 - 1/4 = 2/4, which simplifies to 1/2. Therefore, you have 1/2 of the pizza left.

Which is larger: 1/2 or 1/3?

• 1/2

• 1/5

• 1/4

• 1/6

Answer explanation

To compare 1/2 and 1/3, note that 1/2 is greater because it represents a larger portion of a whole. When visualized on a number line, 1/2 is to the right of 1/3, confirming that 1/2 is indeed larger.

If a pencil is 7 inches long, how many inches are in 3 pencils?

• 18 inches

• 14 inches

• 21 inches

• 24 inches

Answer explanation

To find the total length of 3 pencils, multiply the length of one pencil (7 inches) by 3. So, 7 inches x 3 = 21 inches. Therefore, the correct answer is 21 inches.

If you have 2/5 of a cake and give away 1/5, how much do you have left?

• 1/2

• 1/5

• 3/5

• 2/5

Answer explanation

You start with 2/5 of the cake. If you give away 1/5, you subtract 1/5 from 2/5: 2/5 - 1/5 = 1/5. Therefore, you have 1/5 of the cake left.

What is 20 - 9?

• 11

• 12

• 10

• 15

Answer explanation

To solve 20 - 9, subtract 9 from 20. This gives you 11, which is the correct answer. The other options (12, 10, 15) are incorrect.

What is 3 x 9?

• 27

• 18

• 36

• 21

Answer explanation

To find 3 x 9, multiply 3 by 9. The result is 27, which is the correct answer. The other options (18, 36, 21) are incorrect.

Which shape has 4 equal sides: square or rectangle?

• triangle

• square

• circle

• oval

Answer explanation

A square has 4 equal sides, while a rectangle has opposite sides that are equal but not necessarily all four. Therefore, the correct answer is square.

If you have 1/2 of a chocolate bar and eat 1/4, how much is left?

• 1/2

• 3/4

• 1/4

• 1/8

Answer explanation

You start with 1/2 of a chocolate bar. Eating 1/4 means you subtract 1/4 from 1/2. To do this, convert 1/2 to 2/4. So, 2/4 - 1/4 = 1/4. Therefore, you have 1/4 of the chocolate bar left.