3.5A Adding and Subtracting on a number line

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals along its length, used to represent numbers and perform operations like addition and subtraction.

Tags

CCSS.2.MD.B.6

Front

How do you add numbers on a number line?

Back

To add numbers on a number line, start at the first number and move to the right by the amount of the second number.

Tags

CCSS.5.NBT.B.7

Front

How do you subtract numbers on a number line?

Back

To subtract numbers on a number line, start at the first number and move to the left by the amount of the second number.

Tags

CCSS.7.NS.A.1C

Front

What does the '+' symbol mean?

Back

The '+' symbol means to add or combine two numbers.

Tags

CCSS.1.OA.A.1

Front

What does the '-' symbol mean?

Back

The '-' symbol means to subtract or take away one number from another.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 15 + 16?

Back

The result of 15 + 16 is 31.

Tags

CCSS.2.OA.A.1

Front

What is the result of 31 - 16?

Back

The result of 31 - 16 is 15.

Tags

CCSS.2.OA.A.1

Front

If you start at 15 on a number line and add 16, where do you end up?

Back

You end up at 31 on the number line.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

If you start at 31 on a number line and subtract 16, where do you end up?

Back

You end up at 15 on the number line.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

What is the first step in solving 15 + 16 on a number line?

Back

The first step is to locate the number 15 on the number line.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6