Topic 4, 1st grade

Phil has 12 cars to wash.
He washes 5 of them.
How many cars does Phil have left to wash?

12-5=_____?

• 5 cars

• 6 cars

• 7 cars

• 8 cars

Molly has 15 shirts.
9 of them are colored.
The rest are white.
How many of her shirts are white?

15-9=_____?

• 5

• 6

• 7

• 8

Which fact family matches the picture of the red and blue flowers?

• 6 + 5 = 11
  5 + 6 = 11
  11 – 5 = 6
  11 – 6 = 5

• 7 + 4 = 11
  4 + 7 = 11
  11 – 4 = 7
  11 – 7 = 4

• 8 + 4 = 12
  4 + 8 = 12
  12 – 4 = 8
  12 – 8 = 4

• • 
    

    8 + 5 = 13
    5 + 8 = 13
    13 – 5 = 8
    13 – 8 = 5

Which related subtraction fact can be solved using 8 + 9 = 17?

• 
  

  9 – 8 = 1

• 17 – 8 = 9

• 18 – 7 = 11

• 
  

  19 – 8 = 11

Jenny has 14 pennies.
She spends 5 on gum.
How many pennies are left?

Part A
How can you make 10 to solve?

• • 
    

    5 + 5 = 10, 14 – 10 = 4

• • 14 – 9 = 5, 10 – 5 = 5

  
  

• 14 – 4 = 10, 10 – 1 = 9

• 10 – 4 = 14, 14 – 4 = 10

14-5= ______.

• 6

• 7

• 8

• 9

Nancy bakes 15 rolls.
Her family eats 7 rolls at dinner.
How many rolls are left?

Which equation matches the story?

• 
  

  15 – 7 = ?

• 15 – 5 = ?

• 15 + 7 = ?

• 
  

  7 + 7 = ?

15 – 7 = ?

• 5

• 7

• 8

• 10

16 – 9 = ?

• 5

• 6

• 7

• 8

Susie solves this subtraction fact.
10 – 6 = ____

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