16 - 10 =
6
There are 11 vehicles in a parking lot. 6 of them are cars and the rest are trucks. How many trucks are there?
5 trucks
12 - 4 =
? - ? =
12 - 4 = 8
8 + 4 = 12
Dee has 15 stickers. She uses 11 stickers to decorate a poster. How many stickers does Dee have left?
Solve and add to check.
15 - 11 = 4
11 + 4 = 15
15 - 4 =
Show on a number line.
11
Alex has 14 brown marbles and 3 green marbles. How many fewer green marbles does Alex have than brown marbles?
11 marbles
14 - 8 = ?
? + ? =
14 - 8 = 6
6 + 8 = 14
Solve for the unknown.
17 - ? = 4
Whole: ?
Part: ?
17 - 13 = 4
Whole: 17
Part: 4
11 - 5 =
Show on a number line.
6
Chris has 9 flowers. He gives some flowers away. He has 6 flowers left. How many flowers does Chris give away?
3 flowers
5 + 3 =
? - 3 =
5 + 3 = 8
8 - 3 = 5
Choose the facts that belong to the same fact family as 8 + 9 = 17. Choose ALL that apply.
a. 9 + 8 = 17
b. 17 - 9 = 8
c. 17 - 8 = 9
d. 9 - 8 = 17
a, b, c
Miles makes a fruit salad. He uses 14 blueberries and 9 cherries. How many more blueberries than cherries does Miles use?
14 - 9 = 5 blueberries
13 stamps
18 - 7 = ?
? + 7 =
18 - 7 =
11 + 7 =
18 - 7 = 11
Subtract by making 10.
19 - 14 = ?
19 - ? = 10
10 - ? = ?
19 - 14 = ?
19 - 9 = 10
10 - 5 = 5
19 - 14 = 5
There are 15 people in the dentist's office. 6 people leave. How many people are in the dentist's office now?
9 people
Ping counts 13 bugs on his patio. 3 more bugs crawl onto the patio. Then 8 bugs leave. How many bugs are on the patio now?
Explain your answer.
8 bugs
13 + 3 = 16
16 - 8 = 8
13 - 5 = ?
? + 5 =
13 - 5 =
8 + 5 = 13
13 - 5 = 8
Mary writes this fact family.
11 + 5 = 16
16 - 5 = 11
Is Mary missing facts? Explain your answer and write the fact family.
Yes, she is missing facts. She should've written 4 of them.
11 + 5 = 16
5 + 11 = 16
16 - 5 = 11
16 - 11 = 5