Khan Academy Unit 4 Test Addition and Subtraction within 20

The great magician pulled some rabbits out of his hat. Then he pulled out

6 doves. He pulled 19 animals out of his hat.

How many rabbits did he pull out of his hat?

? =6=19

Tags

CCSS.2.OA.A.1

Find the true equation.

Choose 1 answer:

• 1+4=2+2

• 3+3=7-1

• 1+1=5-4

Tags

CCSS.1.OA.B.3

The Rockers made a CD with 9 songs on it. Their CD had 4 fewer songs than the CD made by Dustin Beemer.

How many songs are on Dustin Beemer's CD?

Tags

CCSS.2.OA.A.1

Subtract.

Hint: Use the ten frames to help solve 4−1

? = 4-1

Tags

CCSS.2.OA.A.1

I went to my garden and picked 2 carrots, 8 onions, and 2 radishes.

How many vegetables did I pick?

Tags

CCSS.2.OA.A.1

Add.

Hint: Use the groups of objects to help solve 8+6 =

8+6=?

Tags

CCSS.2.OA.A.1

A squirrel was preparing for winter. She arranged her acorns by putting them in

2 rows with 4 acorns in each row.

Which image below shows how the squirrel arranged her acorns?

Choose 1 answer:

• 
• 
• 

Tags

CCSS.2.OA.C.4

Subtract.

? = 10 − 7

Tags

CCSS.2.OA.A.1

Complete the equation.

8 = ? − 4

Tags

CCSS.1.OA.D.8

Jack swam 8 laps. He swam 6 fewer laps than Lea.

How many laps did Lea swim?

Tags

CCSS.2.OA.A.1