Mental Maths

When 27 is doubled, it gives

• 81

• 27

• 54

• 108

12 + ___ = 20

• 4

• 6

• 8

• 10

Square of 3 + Double of 3 =

• 11

• 13

• 15

• 17

___ + 25 = 30

• 1

• 3

• 5

• 7

A number that multiplies any number to give that same number as the answer is ___________

• 0

• 1

• 10

• 2

___ + 15 =30

• 11

• 13

• 15

• 17

Ninety-six MINUS thirty-seven equals

• one hundred and thirty three

• sixty-nine

• fifty-nine

• seventy- three

19 + ____= 30

• 9

• 11

• 13

• 15

There are six children in a class, each of them is 9 years old, what will be their total age?

• 15

• 25

• 3

• 54

Tags

CCSS.3.OA.A.3

___ + 16 = 30

• 8

• 10

• 12

• 14