Partial Products
What smaller problems can you use to find 185 + 613?
What is the sum?
Hint: Break apart into ones, tens, and hundreds
100 + 600 = 700
80 + 10 = 90
5 + 8 = 13
700 + 90 + 13 = 803
136 + 252
136 rounded to the nearest 10 = _______
252 rounded to the nearest 10 = _______
Rounded sum= ___________
Find the Exact Sum of 136 + 252 = __________
136 + 252
136 rounded to the nearest 10 = 140
252 rounded to the nearest 10 = 250
Rounded sum= 390
Find the Exact Sum of 136 + 252 =388
Find the exact sum of 137 + 155 + 18
137 + 155 + 18 = 310
Find 528-341
528 - 341 = 187
406 - 136 =
406 - 136 =270
What smaller problems can you use to find 365 + 422?
What is the sum?
Hint: Break apart into ones, tens, and hundreds
300 + 400 = 700
60 + 20 = 80
5 + 2 = 7
365 + 422 = 787
564 + 283
564 rounded to the nearest 10 = _______
283 rounded to the nearest 10 = _______
Rounded sum= ___________
Find the Exact Sum of 564 + 283= __________
564 rounded to the nearest 10 = 560
283 rounded to the nearest 10 = 280
Rounded sum= 840
Find the Exact Sum of 564 + 283= 847
A pet store is selling 3 types of fish. They have 132 Goldfish, 129 Angel fish, and 18 Guppies. How many fish are there in all?
132 + 129 + 18 = 279
426 - 158 =
426 - 158 =268
305 - 178 =
305 - 178 = 127
What smaller problems can you use to find 275 + 313?
What is the sum?
Hint: Break apart into ones, tens, and hundreds
200 + 300 = 500
70 + 10 = 80
5 + 8 = 13
275 + 313= 588
172 + 534
172 rounded to the nearest 10 = _______
534 rounded to the nearest 10 = _______
Rounded sum= ___________
Find the Exact Sum of 172 + 534 = __________
172 rounded to the nearest 10 = 170
534 rounded to the nearest 10 = 530
Rounded sum= 700
Find the Exact Sum of 172 + 534 = 706
Find the exact sum of 150 + 129 + 12
150 + 129 + 12 = 291
272 - 145 =
272 - 145 =127
409 - 251 =
409 - 251 = 158
What smaller problems can you use to find 271 + 425?
What is the sum?
Hint: Break apart into ones, tens, and hundreds
200 + 400 = 600
70 + 20 = 90
1 + 5 = 6
271 + 425 = 696
309 + 287
309 rounded to the nearest 10 = _______
287 rounded to the nearest 10 = _______
Rounded sum= ___________
Find the Exact Sum of 309 + 287 = __________
309 + 287
309 rounded to the nearest 10 = 310
287 rounded to the nearest 10 = 290
Rounded sum= 600
Find the Exact Sum of 309 + 287 = 596
McDonalds sold 510 hamburgers during the week. They also sold 45 apple pies and 27 ice cream cones. How many hamburgers, apple pies, and ice cream cones did they sell in total during the week?
510 + 45 + 27 = 582
A greenhouse grew 276 tomato plants and 147 roses. How many more tomato plants did it grow?
276 - 149 = 129
Cory was adding books to the library shelves. She put 117 nonfiction books on the shelves. Then there were 204 nonfiction books. How many nonfiction books were on the shelves before?
204 - 117 = 87
What smaller problems can you use to find 156 + 461?
What is the sum?
Hint: Break apart into ones, tens, and hundreds
100 + 400 = 500
50 + 60 = 110
6 + 1 = 7
156 + 461 = 617
582 + 230
582 rounded to the nearest 10 = _______
230 rounded to the nearest 10 = _______
Rounded sum= ___________
Find the Exact Sum of 582 + 230 = __________
582 rounded to the nearest 10 = 580
230 rounded to the nearest 10 = 230
Rounded sum= 810
Find the Exact Sum of 582 + 230 = 812
Marissa is having a big party and decided to buy pastries from Liliha Bakery. She orders 123 coco puffs, 168 cupcakes and 36 apple turnovers. How many pastries does she buy in all?
123 + 168 + 36 = 327
Liliha Bakery sold 459 taro mochi donuts and 568 coco puffs. How many more coco puffs were sold?
568 - 459 - 109
Tobi sold 250 bottles of water and 148 juice boxes at the football game. How many more bottles of water than juice boxes did Tobi sell?
250 - 148 = 102