Double Digit Addition
15 + 20 = ?
15 + 20 = 35
12 - 10 = _____
12 - 10 = 2
3 + __ =12
3 + 4 = 12
True or False? 65 is less than 56
False, 65 is great than 56.
What number belongs in the empty spot?
13, __, 17, 19, 21
The missing number is 15.
13, 15, 17, 19, 21
34 + 40 = ?
34 + 40 = 74
There were 34 students in a class. There were 14 girls in the class. How many boys are in the class?
34 -14 =20. There are 20 boys in the class.
13 + ___ =20
13 + 7 = 20
78 ________ than 87
17 is less than 87.
What number is 10 more than 35?
45
42 + 20 = ?
42 + 20 = 62
75 - 30 = ?
75 - 30 = 45
20 - __ = 12
20 - 8 = 12
12 is _______21
12 is less than 21.
What number is 10 less than 15?
5 is 10 less than 15.
72 + 11 = ?
72 + 11 = 83
89 - 13 = ?
89 - 13 = 76
14 + ___ = 19
14 + 5 = 19
34 is ______ 43.
34 is less than 43.
Find the following numbers:
1 more than 51, 1 less than 51.
1 more than 51 is 52.
1 less than 51 is 50.
53 + 14 = ?
53 + 14 = 67
In fall, the leaves on a tree fall down to the ground. The tree started with 64 leaves but 20 leaves fell to the ground. How many leaves are left on the tree?
There are 44 leaves still on the tree. 64 - 20 = 44.
21 - __ = 16
21 - 5 = 16
True or false: 23 is less than 32?
True, 23 is less than 32.
Find the missing number in the pattern:
10, __, 16, 19, 21
The missing number is 13.
10, 13, 16, 19, 21