Addition
619 + 25 =
644
820 - 750 =
70
6 x 6 =
36
What number does this expanded form represent?
1,000 + 800 + 90 + 3
1,893
114 birds were sitting in a tree. 21 more birds flew up to the tree. How many birds were there altogether in the tree?
93 birds
114 sitting - 21 flew away = 93
127 + 342 =
469
632 - 129 =
503
9 x 5 =
45
What number does this expanded form represent?
8,000 + 100 + 30 + 8
8,138
29 birds were sitting in a tree. Some more fly up to the tree. Then there were 142 birds in the tree. How many more flew up to the tree?
171 birds
29 sitting + 142 fly up = 171
2,410 + 1,215 =
3,625
8,100 - 1,800 =
6,300
15 x 4 =
60
Give the expanded form of 3,620
3,000 + 600 + 20
Beth has 200 crayons. She gives 24 of them away to Jen. She lost 2. How many crayons does Beth have left?
174 crayons
200 crayons - 24 gave away - 2 lost= 174
619 + _____ = 900
281
78 - ____ = 46
32
25 x 25 =
625
What number is represented by this expanded notation?
(4 x 100,000) + (1 x 10,000) + (3 x 1,000) + (2 x 100) + (6 x 10) + (8 x 1)
413,268
Cindy’s mom baked 50 cookies. Paul’s dad baked 50 cookies. Cindy and Paul ate 8 cookies each and then brought them to school for a party. How many cookies did they bring to school altogether?
84 cookies
50 cookies + 50 cookies = 100
8 cookies + 8 cookies = 16
100 cookies - 16 Cindy and Paul ate = 84
_____ + 606 = 900
294
___ - 18 = 24
42
46 x 64 =
2,944
(7 x 100,000) + (4 x 10,000) + (2 x 100) + (6 x 10)
740,260
The library is being relocated. The librarians are busy organizing the books.
Three boxes filled with fiction books and two boxes filled with reference books were just delivered. If each box is filled with 85 books, how many fiction books are there?
85 + 85 + 85 + 85 +85 =
425 books