Adding and Subtracting
121,589 + 3,261
124,850
Estimate the sum of 4,204 and 589.
4200+600 = 4800
64 x 8=
512
321 x 4
Use an area model to solve.
1284
252 pieces of chocolate
430,285 + 1,002
431,287
Estimate the difference between 2,976 and 5,076
8,052
40 x 9
360
716 x 2=
Use an area model to solve
1,432
74 cookies
57,327 - 41,678
53,162
Estimate the product of 5 and 689.
3,500
527 x 6
3,162
8619 x 3=
Use an area model to solve
25,857
Jack went to a Broadway Play. There were 457 kids in the audience. There were three times more adults in the audience. How many adults were ther?
1371 adults
159,254 - 108,540
50,714
Estimate the product of 8 and 229.
1,600
1,468 x 7 =
10,276
4249 x 9=
Use an area model to solve.
38,241
Frank is buying a new video game. It costs him $72. His new gaming console costs him 6 times as much as the game. How much did he spend on the gaming console?
$432
What number must be added to 875 to ge to 1400?
525
Estimate the product of 879 and 6
5,400
4,567 x 4 =
18,268
6,245 x 8=
Use an area model to solve.
49,960
At the Thanksgiving Day Parade, there are 9,000 people. There are 3,752 people wearing red shirts. There are 4,743 people wearing green shirts. The rest of the people are wearing purple. How many people are wearing purple?
505 people