Fluent Addition and Subtraction Quiz

• 12

• 14

• 15

• 16

Answer explanation

To use the strategy of making ten, we can break 6 into 2 and 4. Adding 8 and 2 gives us 10, then adding the remaining 4 results in 14. Thus, 8 + 6 equals 14.

Tags

CCSS.1.OA.C.5

CCSS.1.OA.C.6

If you have 5 apples and you get 3 more, how many apples do you have in total?

• 7

• 8

• 9

• 10

Answer explanation

You start with 5 apples and receive 3 more. To find the total, add 5 + 3, which equals 8. Therefore, the correct answer is 8.

Tags

CCSS.1.OA.A.1

CCSS.1.OA.A.2

CCSS.1.OA.C.6

• 7

• 8

• 9

• 10

Answer explanation

To solve 13 - 4, we can decompose 4 into 3 and 1. Subtracting 3 from 13 gives us 10, and then subtracting 1 gives us 9. Thus, 13 - 4 = 9.

Tags

CCSS.1.OA.C.6

• 12

• 13

• 14

• 15

Answer explanation

To simplify 6 + 7, you can break it down as 6 + 6 + 1, which is easier to compute. This gives you 12 + 1 = 13. Therefore, the correct answer is 13.

Tags

CCSS.1.OA.C.6

If you have 10 candies and you eat 2, how many candies are left?

• 6

• 7

• 8

• 9

Answer explanation

You start with 10 candies and eat 2. To find out how many are left, subtract 2 from 10: 10 - 2 = 8. Therefore, the correct answer is 8.

Tags

CCSS.1.OA.A.1

CCSS.1.OA.A.2

CCSS.1.OA.C.5

CCSS.1.OA.C.6

• 13

• 14

• 15

• 16

Answer explanation

To use the strategy of making ten, we can break 5 into 1 and 4. So, 9 + 1 = 10, and then add the remaining 4. Thus, 10 + 4 = 14, which is the correct answer.

Tags

CCSS.1.OA.C.6

If you have 7 marbles and you lose 3, how many marbles do you have now?

• 3

• 4

• 5

• 6

Answer explanation

You start with 7 marbles and lose 3. To find out how many you have left, subtract 3 from 7: 7 - 3 = 4. Therefore, you now have 4 marbles.

Tags

CCSS.1.OA.A.1

CCSS.1.OA.C.6

• 2

• 3

• 4

• 5

Answer explanation

Using the relationship between addition and subtraction, we can rewrite 12 - 8 as 12 + (-8). This gives us 12 + (-8) = 4, confirming that the correct answer is 4.

Tags

CCSS.1.OA.A.1

CCSS.1.OA.B.3

CCSS.1.OA.B.4

CCSS.1.OA.C.5

CCSS.1.OA.C.6

If you count on 2 from 5, what number do you reach?

• 6

• 7

• 8

• 9

Answer explanation

Counting on 2 from 5 means you add 2 to 5. So, 5 + 2 = 7. Therefore, the correct answer is 7.

Tags

CCSS.1.OA.C.5

CCSS.1.OA.C.6

• 9

• 10

• 11

• 12

Answer explanation

To use the strategy of making ten, we can think of 7 + 3 as 7 + 3 = 10 + 0. However, since we only need to add 3 to 7, we can also see it as 7 + 3 = 10 + 1, which gives us 11.

Tags

CCSS.1.OA.C.6