Rounding
Round 293 to the nearest ten.
290
5 x 5
25
227 - 114 = ?
113
446 + 375 = ?
821
There are 220 students in the school. 54 students go to the nurse. 30 students come back and the rest go home. How many students are left in the school?
196 students
Round 562 to the nearest hundred.
600
3 x 6
18
313 - 172 = ?
141
206 + 557 = ?
763
There are seats for 600 students in the auditorium. There are 221 students in Clare's school and 167 students in Noah's school. How many empty seats will there be?
212 empty seats
Is 350 closer to 300 or 400?
400 (50 or more round up)
4 x 7
28
437 - 219 = ?
218
309 + 631 = ?
940
At the bake sale, the bakers start with $275. The bakers sold 10 cookies for $5 each. How much money do they have now?
$325
Which number is closest to 200 when rounding to the nearest hundred?
a. 290
b. 214
c. 352
d. 253
b. 214
9 x 5
45
402 - 191 = ?
211
682 + 522 = ?
1,204
Pig the pug has 400 treats. He gives 8 boxes of treats to his friends. There are 5 treats in each box. How many treats does he have left?
360 treats
When rounding to the nearest ten, when do you round down and when do you round up?
4 or less round down, 5 or more round up.
12 x 3
36
600 - 345 = ?
255
569 + 592 = ?
1,161
There are 200 colored pencils in a bag. Ten students each take 3 pencils from the bag. The number of pencils left in the bag is k. Which equation represents the equation?
a. 200 - 3 = k
b. 200 + 10 x 3 = k
c. 3 x k = 200 - 10
d. k = 200 - 10 x 3
d. k = 200 - 10 x 3