Rounding
What is 105 rounded to the nearest hundred?
100
243 + 125 = ?
368
134 + 6 + _____________ + 1 = 201, so 201 - 134 = _____________
60 ; 67
The school library has 245 fiction books and 132 nonfiction books. How many books are there altogether?
377 books
What does it mean when a question says find the DIFFERENCE?
Subtract!
What is 527 rounded to the nearest 10?
530
427 + 356 = ?
783
346 + 4 + ______ + 1 = 429
So, 429 − 346 = _______
78 ; 83
There are 582 students at a school. If 246 students are girls, how many students are boys?
336 students
What does it mean when a question says find the SUM?
Add!
What 2 tens is 876 between?
870 and 880
738 + 156 = ?
894
452 + 8 + ______ + 2 = 537
So, 537 − 452 = ______
75 ; 85
Jack collected 327 baseball cards. His brother collected 145 cards. How many cards did they collect altogether?
472 cards
True or false? : 406 rounded to the nearest 10 is 400
False!
Round 525 to the nearest 10 and the nearest 100
Nearest 10 : 530
Nearest 100 : 500
675 + 248 = ?
923
379 + 1 + ______ + 2 = 456 So, 456 − 379 = ______
74 ; 77
A theater has 675 seats. During a show, 489 seats were filled. How many seats were empty?
186 seats
437 + 345 = ____________
_________ hundreds + ________ tens + _________ ones
782 ; 7 hundreds + 8 tens + 2 ones
Use a number line to show 333 rounded to the nearest 10
330
856 + 179 = ?
1,035
527 + 3 + ______ + 2 = 615
So, 615 − 527 = ______
83 ; 88
A farmer has 814 chickens. He sells 327 chickens. How many chickens does he have left?
487 chickens
425 - 287 = _________
1 hundred + _______ tens + _______ ones
138 ; 1 hundred + 3 tens + 8 ones