Mental Math

Which operation should be used to solve the problem?

There are 20 students in Mr. Adam's class. Each student has 5 dollars. How much money is there in all?

• 
• 

Tags

CCSS.3.OA.A.3

If the word problem asks you to find the 'sum' of numbers, what will you do?

• Add

• Subtract

Tags

CCSS.1.OA.A.1

• 242

• 936

• 926

• 836

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Half of me is 5 and double me is 20. What number am i?

• 40

• 10

• 5

• 15

Tags

CCSS.4.NBT.B.6

Double me is 100, half of me is 25. What number am I ?

• 200

• 70

• 50

• 100

Tags

CCSS.5.OA.B.3

There are 13 girls and 15 boys in the class. How many children are there in the class altogether?

• 28

• 26

• 15

• 27

Tags

CCSS.2.OA.A.1

Which birthday is it?

• 7rd

• 7th

• 7ed

• 7

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

What is the order of red balloon?

• 5th

• 6th

• 5

• 7th

Tags

CCSS.3.OA.D.9

A bus picked up 28 people at the first stop and 29 at the second stop.

No one got off at the second stop. How many people are on the bus?

• 47

• 28

• 57

• 1

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

• 946

• 953

• 963

• 966

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2