Mental maths

Find the result when 89 and 21 are taken together.

• 116

• 110

• 66

• 1,869

11 × 57

• 627
• 527
• 517
• 437

Tags

CCSS.4.NBT.B.5

396 ÷ 11

• 13
• 16
• 33
• 36

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Difference between 83 and 68 is?

• 25

• 15

• 35

• 45

1955

What is the value of the underlined digit?

• 50

• 5

• 5000

• 500

Tags

CCSS.4.NBT.A.1

40 + ____ = 100

What is the missing number?

• 80

• 50

• 60

• 0

Tags

CCSS.1.NBT.C.5

Write the number made with this set of numbers : 800, 90, 4000, 8

• 8984

• 4898

• 9848

• 8894

I have 43, how much more should I add to make the next ten?

• 3

• 6

• 8

• 7

What is the result when 157 is subtracted from 163?

• 5

• 9

• 6

• 4

181 take away 176 is...?

• 4

• 5

• 8

• 3