Unknown addends

Front

What is an unknown addend?

Back

An unknown addend is a number that we do not know in an addition problem. We can find it by using other numbers in the problem.

Tags

CCSS.1.OA.D.8

Front

If Mom has 4 pens and Dad gives her 7 more, how many pens does she have now?

Back

Mom has 11 pens now.

Tags

CCSS.2.OA.A.1

Front

If Olivia has some jelly beans and David gives her 13 more, how can we find out how many she started with?

Back

We can subtract 13 from the total number of jelly beans Olivia has now.

Tags

CCSS.2.OA.A.1

Front

What is the equation to find the unknown addend in the problem: _ + 4 = 10?

Back

The equation is: 10 - 4 = _.

Tags

CCSS.2.OA.A.1

Front

If Pat had 3 pieces of gum and got 4 more, how many pieces does he have now?

Back

Pat has 7 pieces of gum now.

Tags

CCSS.1.OA.A.1

Front

Is 7 + 5 + 3 equal to 4 + 4 + 2?

Back

No, it is false.

Tags

CCSS.1.OA.B.3

Front

What is the first step to solve an unknown addend problem?

Back

Identify the total and the known addend.

Tags

CCSS.2.OA.A.1

Front

If you have 6 apples and you want to have 10, how many more apples do you need?

Back

You need 4 more apples.

Tags

CCSS.1.OA.A.1

Front

What does the term 'addend' mean?

Back

An addend is a number that is added to another number in an addition problem.

Front

If you have 2 + _ = 5, how do you find the unknown addend?

Back

You subtract 2 from 5 to find the unknown addend.

Tags

CCSS.1.OA.A.1