Missing Numbers
5, __, 7
5, 6, 7
There are 11 fish.
How many ones are in 15?
There are 5 ones in 15.
5 + 5 =
5 + 5 = 10
5 walruses swam in the water together. 2 walruses climbed onto the ice. How many walruses are left in the water?
5 walruses - 2 walruses = 3 walruses left in the water
12, __, 14
12, 13, 14
There are 17 crabs.
How many tens are in 17?
There is 1 ten in 17.
10 + 10 =
10 + 10 = 20
8 dolphins swam in a pod. 4 dolphin babies were born. How many dolphins are in the pod now?
8 dolphins + 4 dolphins = 12 dolphins
26, __, 28
26, 27, 28
There are 26 dolphins.
What number is in the ones place in 26?
6 is in the ones place in 26.
25 + 15 =
25 + 15 = 40
20 fish swam in a school. A great white shark came and ate 5 fish. How many fish are left in the school?
20 fish - 5 fish = 15 fish
31, __, 33
31, 32, 33
There are 33 sharks.
What number is in the tens place in 37?
3 is in the tens place in 37.
38 - 15 =
38 - 15 = 23
22 seahorses clung to seaweed with their tails. 6 seahorses swam away. How many seahorses are still clinging to the seaweed?
22 seahorses - 6 seahorses = 16 seahorses
48, __, 50
48, 49, 50
There are 48 turtles.
What number is in the ones place?
What number is in the tens place?
42
2 is in the ones place.
4 is in the tens place.
42 - 22 =
42 - 22 = 20
67 fish swam near the reef. 33 fish swam away. How many fish are still near the reef?
67 fish - 33 fish = 34