Estimation
Estimate
47+ 51
100
Which of the expressions below will have a 0 in the ones place of the sum? Select all that apply.
A) 450 + 321
B) 238 + 122
C) 456 + 314
D) 345 + 216
B, C
What is 834 - 418?
A 416
B 227
C 424
D 393
A
Watson had $700 to donate. He donated $200 to his school’s library. How much money did he have left to donate to another place?
$500
Tom worked on the farm storing bales of hay in the barn. The first day he stacked 54 bales and 36 bales on the second day. About how many bales were stored in the barn?
Estimate.
719 + 288
1,000
Which of the expressions below will have a 2 in the tens place of the sum? Select all that apply.
A) 216 + 317
B) 347 + 273
C) 213 + 315
D) 292 + 325
B, C,
Which of the expressions will have a 0 in the ones place of the difference? Select all that apply.
A) 212- 132
B) 265 – 120
C) 567 – 347
D) 865 – 435
A, C, D
Jude was given $100 for taking care of the neighbor’s plants for 4 weeks. He spent $37 at the school book fair and $9 on an ice cream. How much money did he have left?
$54
While fishing over the weekend Keith caught 43 and Jason caught 29 fish. About how many fish were caught?
about 70 fish
Estimate.
92 - 37
50
Last summer, Rupal saved $351. This summer, she saved $269. If Rupal saves $184 next summer, how much money will she have saved in all over the three summers?
$804
Which of the expressions will have a 8 in the hundreds place of the difference? Select all that apply.
A) 919 – 106
B) 959 – 86
C) 945 – 165
D) 875 – 216
A, B,
Last summer, Elliot saved $369. This summer, he saved $364. If Elliot saves $259 next summer, how much money will he have saved in all over the three summers?
$992
There are 627 oranges in the store, 281 orange are sold by the end of the day. About how many oranges are left in the store?
about 300 oranges
Estimate.
468 - 189
300
Add the following three numbers: 540, 294, and 140.
How many hundreds do you get in the final sum?
9
What is 800 - 234?
A 634
B 566
C 595
D 529
566
Ashley's book is 3269 pages long. She read 20 pages on Monday, 53 pages on Tuesday, and 60 pages on Wednesday. How many pages does she have left in her book?
3,136 pages
Tim has 676 orange marbles, he gave Sara 346 of the orange marbles. About how many orange marbles does he now own?
About 400 marbles
547-339
200
Solve.
241 + 299 + 337 = ____
877
Fill in the blank:
938 – 170 – 323 = ____
445
At the beginning of the month, Prathima had $583. In the first half of the month, she spent $180. In the second half of the month, she spent $139. How much money does Prathima have left?
$264
The post office mails 677 letters each day, out of which 247 are addressed to foreign countries. How many letters were sent in the United States?
About 500 letters