No. When you estimate your answer is not accurate.
100
Round 88 to the nearest ten
90
100
59 + 87 =
146
100
90 - 42=
48
100
Ja'Shayla bought from 180 pencils and 78 erasers from the Book Fair. How many more pencils than erasers did she buy?
She bought 102 more pencils than erasers.
200
Estimate the sum
83 + 290=
About 400
200
Round 751 to the nearest ten
750
200
91 + 129 =
220
200
713 - 411=
302
200
Ms. Tobias collected 378 green marbles. Ms. Rudder collected 77 fewer marbles than Ms. Tobias. How many marbles did Ms. Tobias and Ms. Rudder buy altogether?
Altogether they collected 679 marbles.
300
Estimate the difference
928 - 740=
About 200
300
Round 249 to the nearest ten and nearest hundred
250 to the nearest ten, 200 to the nearest hundred
300
What is the sum of 300 and 500?
800
300
499 - 76=
423
300
Denzel played 28 hours of video games. Brennen played 31 hours of video games. Gabriel played 10 more hours than Denzel. How many hours of video games did the boys play altogether?
Altogether they played 97 hours of video games.
400
Estimate the sum
411 + 187 =
About 600
400
List all the numbers that when rounded to the nearest ten round to 160
155, 156, 157, 158, 159, 161, 162, 163, 164,
400
216 + 133 + 74 =
423
400
700 - 284=
416
400
Addison and Jada found 758 sea turtles. Only 227 were baby turtles. The rest were grown turtles. How many grown turtles did they find?
The found 531 grown turtles.
500
There are 133 pears, 175 apples, and 280 bananas. About how many fruits are there?
About 600 fruits
500
What number could round to 100 when rounded to the nearest ten and to the nearest hundred
Answers can vary
500
375 + 396 =
771
500
501 - 299=
202
500
On Monday Mr. Gerlach found 317 stickers in the kindergarten hallway. On Tuesday he found 193 stickers. On Wednesday he found 78 stickers. Dr. Cooper looked for stickers all week and she found 650 stickers.
1. Who found more stickers?
2. How many more stickers did that person find?
Dr. Cooper found more stickers. She found 62 more stickers than Mr. Gerlach.