4, 3, 7
4 + 3 = 7
3 + 4 = 7
7 - 3 = 4
7 - 4 = 3
8 + 9 =
17 - 8 = OR
17 - 9 =
15 - 8=
8 + 7 = 15
Christian has 20 toy vehicles. 8 are cars and the rest are trains. How many are trains?
Christian has 12 trains.
8 + n = 17
9
9, 3, 12
9 + 3 = 12
3 + 9 = 12
12 - 3 = 9
12 - 9 = 3
12 + 10 =
22 - 12 = OR
22 - 10 =
14 - 9 =
9 + 5 = 14
Over the weekend Annelise made 18 pillows. If she made 7 pillows on Saturday, how many pillows did she make on Sunday?
Annelise made 11 pillows on Sunday.
9 + m = 20
11
6, 9, 15
6 + 9 = 15
9 + 6 = 15
15 - 6 = 9
15 - 9 = 6
8 + 6 =
14 - 8 = OR
14 - 6
23 - 8 =
8 + 15 = 23
Kaitlynn made a tower with 19 blocks. Then she used 12 blocks to build another tower. How many are left in her first tower?
Kaitlynn had 7 blocks left in her first tower.
15 + h = 21
6
13, 4 , 17
13 + 4 = 17
7 + 9 =
16 - 9 = OR
16 - 7
21 - 10 =
10 + 11= 21
Harper's teacher gave her a box of 25 pens. She gave 13 pens out to her classmates. How many pens were left in the box?
There were 12 pens left in the box.
13 - b = 7
6
13, 12, 25
13 + 12 = 25
12 + 13 = 25
25 - 13 = 12
25 - 12 = 13
14 + 19 =
33 - 14= OR
33 - 19 =
19 - 8 =
8 + 11 = 19
In the morning a grocery store had 30 apples on display. By the end of the day, there were 18 apples left. How many apples were sold during the day?
There were 12 apples sold during the day.
23 - b = 15
8