Mental Mathematics

  $12\times2\ =$  

• 24

• 22

• 14

• 26

Tags

CCSS.3.OA.C.7

 $13-5=$  

• 7

• 8

• 5

• 6

Tags

CCSS.3.NBT.A.2

 $\frac{1}{2}+\frac{1}{2}=$  

•  $\frac{2}{6}$  

• 2

• 1

•  $\frac{1}{4}$  

Tags

CCSS.3.NF.A.1

17-2=

• 15

• 13

• 14

• 19

Tags

CCSS.3.NBT.A.2

80+___= 86

• 7

• 5

• 6

• 12

Tags

CCSS.3.NBT.A.2

32+32=

• 64

• 84

• 66

• 80

Tags

CCSS.3.NBT.A.2

Take half of 34 from half of 46

• 4

• 5

• 6

• 7

Tags

CCSS.5.NBT.B.7

What must be added to 8 times 9 to make 100?

• 18

• 28

• 38

• 48

Tags

CCSS.4.OA.A.3

CCSS.3.OA.D.8

CCSS.7.EE.B.3

How many biscuits are left over when 68 biscuits are shared equally among 8 children?

• 3

• 4

• 5

• 6

Tags

CCSS.4.NBT.B.6

Round 3 728 to the nearest 1000

• 3 000

• 4 000

• 3 700

• 3 800

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3