Rounding Nearest Ten
What is 346 rounded to the nearest ten?
350
What is 3,788 rounded to the nearest 100?
3,800
Which equation could be used to solve 392+183?
300+100+90+80+2+3
Solve using an open number line:
347-128=
Model
219
What is a number that can round to 80?
75,76,77,78,79,80,81,82,83,84
Name 2 numbers that will round to 40.
35,36,37,38,39,40,41,42,43,44
There are 223 flamingos at the zoo. Gia says that there are about 200 flamingos at the zoo. What place did she round to?
She rounded to the hundreds place
Josh had 614 Pokémon cards. Lee had 484 Pokémon cards. How many do they have together?
1,098
Solve using the renaming strategy:
400-177=
Model
223
There are 491 cub scouts on a trip. Luke says that there are about 490 cub scouts and James says that there are about 500.
Their cub scout leader says they are both correct. What place did Luke round to?
tens
Anna says that 894 rounds to 890. What place did she round to?
Tens
John lives 246 miles away from his grandparent's house. Rounded to the nearest hundred about how far does he live from them?
200 miles
Using an open number line add:
789+458=
Model Number line
1,247
Ms. Gardener bought 153 chocolate chips. She had a total of 400 chocolate chips and m&m's. How many m&m's did she buy?
247
There are 491 cub scouts on a trip. Luke says that there are about 490 cub scouts and James says that there are about 500.
Their cub scout leader says they are both correct. What place did James round to?
Hundreds
What is 6,432 rounded to the nearest ten?
6,430
The third graders at Adventure Elementary School are going on a field trip to the zoo. There are 287 students attending. Round the number of students to the nearest 100.
300
Use the place value strategy to solve:
453+364=
Model Place Value strategy
817
Read the problem below:
700+20+2
- 200+60+7
____________
500+40+5
Explain the mistake.
The student did not regroup the ones from the tens place.
The student did not regroup the tens.
There are 491 cub scouts on a trip. Luke says that there are about 490 cub scouts and James says that there are about 500.
Their cub scout leader says they are both correct. Why are they both correct?
491 to the nearest ten is 490 because it is only 1 away from 490 and 9 away from 450.
491 rounds to 500 because it is only about ten away from 500 and is 90 away from 400.
Use the information below to answer the question:
Kate's Money From Babysitting
Week 1 27
Week 2 38
Week 3 118
Rounded to the nearest ten, about how much total money did Kate earn?
She earned about $ 190
The third graders at Adventure Elementary School are going on a field trip to the zoo. There are 287 students and twelve teachers. To the nearest 100 how many people are going on the trip?
About 300 people are going on the trip.
For a birthday party Joey bought 271 pieces of candy and 187 pieces of bubble gum. How many total pieces of gum and candy did he buy?
458
Solve correctly:
700+20+2
- 200+60+7
____________
455
The Thomas family traveled 1,246 miles on their vacation this year. To the nearest hundred, about how many miles did they travel?
1,200