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Model Numbers
Addition/Subtraction
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Add tens
Surprise!
100
Draw 10. Tell the number of tens and ones.
l (1 ten and 0 ones)
100
Eric had 20 fish. Selma gave him 2 more. How many fish does he have now?
22
100
10 and 20
10<20
100
10 + 10 Show your work!
20
100
What number has 4 tens and 3 ones?
43
200
Draw 30. Tell the number of tens and ones.
lll (3 tens and 0 ones)
200
Jorge has 15 Pokemon cards. He gave Derek 1. How many does he have now?
14
200
40 and 15
40 > 15
200
12 + 12 Show your work!
24
200
What number has 6 ones and 8 tens?
86
300
Draw 52. Tell the number of tens and ones.
lllll.. (5 tens and 2 ones.)
300
Dezyre petted 12 puppies. Danica petted 20 puppies. How many puppies did they pet altogether?
32
300
32 and 33
32<33
300
32 + 19 Show your work!
51
300
What is 10 less than 54?
44
400
Draw 100. Tell the number of tens and ones.
llllllllll (10 tens and 0 ones.)
400
Alejandro read 8 books over the summer. Kris read 6 books. How many more books did Alejandro read than Kris?
2
400
104 and 100
104 > 100
400
67 + 14 Show your work!
81
400
Make a ten. Show your work. 9+4
9 + 1 + 3 = 13
500
Draw 114. Tell the number of tens and ones.
lllllllllll.... (11 tens and 4 ones.)
500
Mrs. Kimmey had 20 students. 2 students left. 3 students came. How many students does Mrs. Kimmey have now?
21
500
97 and 87
97 > 87
500
88 + 24 Show your work!
112
500
What number is 15 more than 57?
72