Eighty-two students are in the math club. 35 students are in the science club. How many more students are in the math club than science club?
82 - 35 = 47
5 tens + 2 tens + 8 ones =
5 tens + 2 tens + 8 ones = 78
+10 +___
98 ⟶_____ ⟶ 109
+10 +1
98 ⟶ 108 ⟶ 109
91 - 24 =
91 - 24 = 67
Forty-six birds sat on a wire. Some flew away, but 29 stayed. How many birds flew away?
46 - 17 = 29
46 - 29 = 17
17 + 29 = 46
9 tens - 70 + 4 ones =
9 tens - 70 + 4 ones = 24
+1 +__
32 ⟶ _______ ⟶ 43
+1 +10
32 ⟶ 33 ⟶ 43
86 + 45 =
86 + 45 = 131
Ian bought a pack of 47 water balloons. 19 were red, 16 were yellow, and the rest were blue. How many water balloons were blue?
47 - 19 - 16 = 12
19 + 16 + 12 = 47
12 tens + 3 tens = ____ hundreds ____ tens
12 tens + 3 tens = 1 hundreds 5 tens
-__ -__
60 ⟶ _______ ⟶ 49
-1 -10
60 ⟶ 59 ⟶ 49
154 + 27 =
154 + 27 = 181
Daniel read 54 pages of his book in the morning. He read 27 fewer pages in the afternoon. How many pages did Daniel read altogether?
54 - 27 = 27
54 + 27 = 71
13 tens 7 ones = 1 hundred + ____ tens +____ ones
13 tens 7 ones = 1 hundred 3 tens 7 ones
+10 +1
____ ⟶ ____ ⟶ 73
+10 +1
62 ⟶ 72 ⟶ 73
105 - 42 =
105 - 42 = 63
Sally went shopping. She spent $86 on groceries and $39 on clothing. How much more did Sally spend on groceries than on clothing?
86 - 39 = 47
123 + 4 tens = _____
123 + 4 tens = 163
-20 -9 -__
___ ⟶ 109 ⟶ ___ ⟶ 94
-20 -9 -6
129 ⟶ 109 ⟶ 100 ⟶ 94
38 + 68 + 71 + 12 =
38 + 68 + 71 + 12 = 189