Fun with Addition and Subtraction

What is the sum of 3 and 5?

• 6

• 7

• 8

• 9

Answer explanation

The sum of 3 and 5 is calculated as 3 + 5 = 8. Therefore, the correct answer is 8.

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

If 9 - 4 = 5, what is the unknown addend in the equation 4 + ___ = 9?

• 3

• 4

• 5

• 6

Answer explanation

To find the unknown addend in 4 + ___ = 9, we can subtract 4 from 9. This gives us 9 - 4 = 5. Therefore, the unknown addend is 5.

Tags

CCSS.2.OA.A.1

• True

• False

Answer explanation

The equation 7 + 2 equals 9 is mathematically correct. Therefore, the statement is true.

Tags

CCSS.1.OA.B.3

• 2

• 3

• 4

• 5

Answer explanation

To find the unknown number, we can set up the equation: 5 + x = 8. Subtracting 5 from both sides gives us x = 3. Therefore, the correct answer is 3.

Tags

CCSS.1.OA.D.8

What is the result of 6 + 4?

• 9

• 10

• 11

• 12

Answer explanation

The result of 6 + 4 is 10. Adding these two numbers together gives you the correct answer, which is one of the choices provided.

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

If 10 - 6 = 4, what is the unknown addend in the equation 6 + ___ = 10?

• 3

• 4

• 5

• 6

Answer explanation

To find the unknown addend in 6 + ___ = 10, we can rearrange the equation to ___ = 10 - 6. This simplifies to ___ = 4. Therefore, the correct answer is 4.

Tags

CCSS.2.OA.A.1

• True

• False

Answer explanation

The equation 5 + 3 equals 8 is mathematically correct. Therefore, the statement is true.

Tags

CCSS.1.OA.B.3

• 2

• 3

• 4

• 5

Answer explanation

To find the unknown number, we can set up the equation: 9 - x = 6. Solving for x, we subtract 6 from 9, giving us x = 3. Therefore, the unknown number is 3.

Tags

CCSS.1.OA.D.8

What is the sum of 2 and 7?

• 8

• 9

• 10

• 11

Answer explanation

The sum of 2 and 7 is calculated as 2 + 7 = 9. Therefore, the correct answer is 9.

Tags

CCSS.1.OA.A.1

If 8 - 3 = 5, what is the unknown addend in the equation 3 + ___ = 8?

• 4

• 5

• 6

• 7

Answer explanation

To find the unknown addend in 3 + ___ = 8, we can rearrange the equation to ___ = 8 - 3. This simplifies to ___ = 5. Therefore, the correct answer is 5.

Tags

CCSS.1.OA.D.8