Rounding
Round to the nearest 10
82
80
82 ... the 2 is going to tell the 8 to stay the same ... everything after the tens place is a BIG FAT ZERO
What place value is the 8 in?
248
248 = ones place
Solve (show your work)
45 + 18 =
45 + 18 = 63
Key word = in all = add
4 + 3 = 7
7 bones in all
15 - 6 = 9
Round to the nearest 10
36
40
36 ... the 6 tells the three to go up 1 number ...anything after the tens place becomes a BIG FAT ZERO
What number is in the tens place?
410
410
Tens place = 1
Solve:
10 + 8
10 + 8 = 18
Zalyn colored 18 flowers and Jaelyn colored 12. How many flowers did they color together?
Key word = together = add
18 + 12 = 30
30 flowers together
Show your work and solve:
12 - 8 =
12 - 8 = 4
Round to the nearest 10
425
430
425 ... the 5 tells the 2 to go up 1 number ... anything after the tens place becomes a BIG FAT ZERO
What number is in the hundreds place?
647
647
6 = hundreds place
Solve & Show your work
23 + 13
23 + 13 = 36
Yemil had 10 cookies. Locke had 3. How many fewer cookies did Locke have than Yemil?
Key word = fewer = subtract
10 - 3 = 7
7 cookies
Show your work and solve:
23 - 8
23 - 8 = 15
Round to the nearest hundred
437
400
437 ... the 3 tells the 4 to stay the same ... anything after the hundreds place becomes a BIG FAT ZERO
What place value is the 3 in?
653
653
3 = ones place
Solve & Show your work:
30 + 12 =
30 + 12 = 42
Locke & Jaelyn jumped 5 times. Yemil and Zalyn jumped 6 times. How many times did they jump in all?
Key word = in all = add
5 + 6 = 11
They jumped 11 times
Show your work and solve:
13 - 11
13 - 11 = 2
Round to the nearest hundred:
287
300
287 ... the 8 tells the 2 to go up one number ... anything after the hundreds place becomes a BIG FAT ZERO
What place value is the 4 in?
478
478
4 = Hundreds place
Solve and Show your work:
52 + 18 =
52 + 18 = 70
Yemil had 12 crayons. He left 4 of them at school. How many crayons did he take home?
Key word = left = subtract
12 - 4 = 8
He took 8 crayons home
Show your work and solve:
17 - 11
17 - 11 = 6