Add and Subtract 10s

Start with 336. If you add 20 more, which digit changes?

• ones digit

• tens digit

• hundreds digit

• thousands digit

Which column will change if you did 4,657 + 40 = ?

• The ones column

• The tens column

• The hundreds column

• The thousands column

30 - 20 =

• 10

• 50

• 45

40 - 10 =

• 50

• 30

• 45

What is 10 MORE than 85?

• 75

• 65

• 95

• 75

What is 10 MORE than 43?

• 53

• 57

• 23

• 5

Count by 10s to fill in the missing number (Backward)....

• 10

• 70

• 100

• 80

Count by 10s to fill in the missing number (Backward)....

• 10

• 70

• 100

• 80

Rio bought lollipop cost Rp 1000

If he has Rp 2000. How much change did

he receive?

• Rp 1000

• Rp 500

Count back by 10s to finish the pattern 
90, ___, ____, ____

• 80, 70, 60 

• 80, 70, 50 

• 100, 110, 120