Mental Math Addition & Subtraction

Front

What is Mental Math?

Back

Mental Math is the ability to perform calculations in your head without using a calculator or paper.

Tags

CCSS.2.NBT.B.5

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 finding the difference between two numbers by taking one number away from another.

Front

What is the sum of 32 and 25?

Back

57

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 40 and 15?

Back

55

Tags

CCSS.2.NBT.B.5

Front

What is 17 minus 7?

Back

10

Tags

CCSS.2.OA.A.1

Front

What is 7 plus 8?

Back

15

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Front

What is the sum of 35 and 40?

Back

75

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals, used to represent numbers and their relationships.

Tags

CCSS.2.MD.B.6

Front

What does 'greater than' mean?

Back

'Greater than' means that one number is larger than another number.

Tags

CCSS.1.NBT.B.3