Adding and Subtracting within 1000

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Tags

CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Tags

CCSS.2.NBT.B.7

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the unknown that makes the equation true.

Tags

CCSS.7.EE.B.4A

Front

If you have 12 apples and you add 5 more, how many apples do you have?

Back

12 + 5 = 17 apples.

Tags

CCSS.1.OA.A.1

Front

If you have 30 candies and you give away 10, how many candies do you have left?

Back

30 - 10 = 20 candies.

Tags

CCSS.2.OA.A.1

Front

What is the missing number in the equation 15 + __ = 30?

Back

The missing number is 15.

Tags

CCSS.1.OA.A.1

Front

What is the sum of 25 and 30?

Back

25 + 30 = 55.

Tags

CCSS.2.NBT.B.5

Front

If there are 50 students in a class and 20 go home, how many students are left?

Back

50 - 20 = 30 students.

Tags

CCSS.2.OA.A.1

Front

What is the total of 11, 25, and 13?

Back

11 + 25 + 13 = 49.

Tags

CCSS.2.NBT.B.6

Front

If you have 100 and you spend 45, how much do you have left?

Back

100 - 45 = 55.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2