9-2 & 9-3 Math Questions

Answer explanation

When adding fractions, you add the numerators and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Answer explanation

5 + 3 = 8 and when adding the denominators stay the same, so 5/12 + 3/12 = 8/12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Answer explanation

3 + 4 = 7 and when adding you keep the denominator the same so the answer is 7/2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

A class sets a goal to collect money for a local charity. They collect 2/10 of their goal in the first week. After the second week they had collected 6/10 of their goal. How much of their goal did the class collect in the second week?

Answer explanation

After the second week they had collected a total of 6/10 of their goal. Since they collected 2/10 in the first week we need to figure out what plus 2/10 = 6/10.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Owen is checking a population of butterflies for a unique marking on their wings. In one day, he studies 4/5 of the population in the morning and 1/5 of the population in the afternoon. How much of the population of butterflies did he study in one day?

Answer explanation

He studied 4/5 in the morning and 1/5 in the afternoon, so to figure out how many he studied in one day we need to add 4/5 and 1/5. When we add them we get 5/5 or 1.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Which expressions have a sum of 5/6? Choose all that apply.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Dionne uses 3/10 roll of tape to seal some boxes and 4/10 roll of tape for an art project. Did he use more or less than 1/2 roll of tape in all?

• Less. 3/10 + 4/10=7/20 and 7/20 is less than 1/2.

• More. 3/10 + 4/10=7/20 and 7/10 is greater than 1/2.

• Less. 3/10 + 4/10=7/10 and 7/10 is less than 1/2.

• More. 3/10 + 4/10=7/10 and 7/10 is greater than 1/2.

Answer explanation

When adding fractions you keep the denominator the same so the sum is 7/10. Half of 10 is 5, 7 is bigger than 5, so 7/10 is greater than 1/2.

Tags

CCSS.4.NF.A.2

What 3 fractions did Aaron add together? What is the sum?

Answer explanation

On the number line there are 12 spaces between 0 and 1, so the denominator is 12. There are 4 red jumps so one fraction is 4/12, there is 1 blue jump so another fraction is 1/12, and there are 2 yellow jumps so the last fraction is 2/12. The denominator stays the same when adding fractions so the answer is 7/12.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the correct answer?

• They are correct.

• 5/6

• 6/12

• 6/6

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Before school it snowed 3/8 inch. During school, it snowed 2/8 inch. After school it snowed 5/8 inch. How much did it snow the whole day?

Answer explanation

3+2+5=10

The denominator stays the same when adding fractions, so the answer is 10/8

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D