Doubles Facts
Luca has 3 apples. Ruby has double the amount of apples that Luca has. How many apples does Ruby have?
6 apples.
Fill in the blanks using the doubles plus one strategy:
4 + 3 = _ + _ + 1
3 + 4 = 3 + 3 + 1
2 + 3 = 5. Fill in the blanks to create the other addition equation in this fact family.
_ + _ = 5
3 + 2 = 5
William has 7 apples. How many more apples does William need to have 10 apples in total?
3 more apples.
What number is 1 less than 5?
4
Allie collected 5 stickers. Matthew collected double the amount that Allie did. How many stickers does Matthew have?
10 stickers.
Fill in the blanks using the doubles plus one strategy:
7 + 6 = 6 + _ + _
7 + 6 = 6 + 6 + 1
3 + 4 = 7. Fill in the blanks to create one of the subtraction equations in this fact family.
7 - _ = _
7 - 4 = 3 or 7 - 3 = 4
Mrs. Biscotti picked 3 flowers. How many more flowers does Mrs. Biscotti need to pick to have 10 in total?
7 more flowers.
What number is 2 more than 6?
8
Charlie buys 6 pencils. Adeline buys double the amount of pencils that Charlie bought. How many pencils does Adeline have?
12 pencils.
Solve the following equation using doubles plus one:
5 + 6
5 + 6 = 5 + 5 + 1
5 + 6 = 10 + 1
5 + 6 = 11
12 - 8 = 4. What are the two addition equations in this fact family?
_ + _ = _ and _ + _ = _
8 + 4 = 12 and 4 + 8 = 12
Isabelle has 5 balloons. How many more balloons does she need to have 10 balloons in all?
5 more balloons.
What number is 3 less than 8?
5
Mrs. Kurz loves to read. She read 8 books in September. She wants to read double that amount in October. How many books will she read in October?
16 books.
Solve the following equation using doubles plus one:
7 + 8
7 + 8 = 7 + 7 + 1
7 + 8 = 14 + 1
7 + 8 = 15
5 + 2 = 7. What are the two subtraction equations in this fact family?
_ - _ = _ and _ - _ = _
7 - 5 = 2 and 7 - 2 = 5
Amiyah has 6 gold stars. She needs 10 gold stars to get a prize. How many more gold stars does she need to get a prize?
4 gold stars.
What number is 2 more than 9?
11
Isaac has 10 marbles. He needs double that amount to win. How many marbles does Isaac need to win?
20 marbles.
Fill in the blanks using the doubles plus one strategy:
50 + 51 = 50 + _ + _
50 + 51 = 50 + 50 + 1
Name all four facts for the fact family that uses the numbers 6, 7, and 13.
6 + 7 = 13, 7 + 6 = 13, 13 - 7 = 6, and 13 - 6 = 7
Eric and Eamonn went rock climbing. Eric goes first and climbs for a total of 10 minutes. After 2 minutes have passed, Eamonn wants to know how many more minutes Eric has left before it is his turn. How many more minutes does Eric have to climb before Eamonn can start?
8 minutes.
What number is 7 more than 5?
12