Missing Numbers
___ + 9 = 11
2
I bought two bags of Kit Kats. One had 36 pieces and the other had 23 pieces inside. How many Kit Kats did I get?
59 Kit Kats
True or False
5 + 2 = 1 + 8
False
True or False
18 - 9 is a half fact
True
11 - 4 = ___
7
10 - ___ = 1
9
Luigi made a row of 48 Legos. He wanted to beat Mario, so he made it longer. When he was done, there were 63 Legos. How many Legos did he add to the row?
15 Legos
___ + 3 = 10 + 1
8
Use a strategy to solve 52 + 34
86
Write an equation that matches the LEFT side of the number rack.
8 + 4 = 12
9 + 3 = 12
8 - 4 = 4
9 - 3 = 6
7 + c = 15
c = 8
Spongebob made 44 Krabby Patties one morning. That afternoon, he cooked 37 more. How many Krabby Patties did he make that day?
81 Krabby Patties
9 - 6 = 7 - m
m = 4
Write and solve three examples of half facts.
20 - 10 = 10
14 - 7 = 7
4 - 2 = 2
___ = 20 - 11
9
18 = 14 - w
w = 4
Sonic ran around Earth in 92 seconds. It took him 67 seconds to run around the moon. How much longer did it take him to run around Earth?
25 seconds
8 + k = 5 + 9
k = 6
Use a strategy to solve 84 - 39
45
An mouse walked around a rock. One side was 14 inches long. Another side was 18 inches long. The last side was 26 inches long. How many inches did the mouse walk?
58 inches
22 = s - 7
s = 29
Miss K has 281 pets. 58 of them were dogs. How many were cats?
223 cats
13 - 4 = h - 8
h = 17
Do all doubles facts have odd sums? Write three examples to prove it true or false.
No, 2 + 2 = 4
5 + 5 = 10
7 + 7 = 14
146 + 228 = e
374