Adding With an Open Number Line 2 digits

Front

What is an open number line?

Back

An open number line is a blank line where you can place numbers to help with addition or subtraction. It helps visualize the problem.

Tags

CCSS.2.NBT.B.7

Front

How do you add two-digit numbers using an open number line?

Back

You start at the first number, then jump forward by the second number in parts (tens and ones) to find the total.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 52 and 37?

Back

89

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 34 and 41?

Back

75

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 77 and 21?

Back

98

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 51 and 45?

Back

96

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 32 and 15?

Back

47

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What does 'sum' mean in math?

Back

The sum is the result of adding two or more numbers together.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is a jump on an open number line?

Back

A jump is a movement from one number to another, showing how much you are adding.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

What is the first step in adding with an open number line?

Back

Start by writing the first number on the line.

Tags

CCSS.1.OA.A.1