Estimation Worksheets Grade 3

1. Liam is collecting cans for recycling. On Monday, he collected 127 cans. On Tuesday, he collected 94 cans. About how many cans did Liam collect in total? Round each number to the nearest ten before adding.
2. Emma is reading a book with 328 pages. She read 187 pages on Monday and plans to read the rest on Tuesday. About how many pages does Emma have left to read? Round each number to the nearest hundred before estimating.
3. A rectangular swimming pool is drawn with a length of 125 meters and a width of 75 meters. What is the perimeter of the swimming pool?

…and 4 more problems

1. Estimate: 589 - 312 (round to nearest 100)
2. A rectangular soccer field is drawn with a length of 120 meters and a width of 80 meters. What is the perimeter of the soccer field?
3. Estimate: 673 - 298 (round to nearest 100)

…and 2 more problems

1. Noah is organizing a school fundraiser. He sold 347 tickets for the morning show and 482 tickets for the evening show. About how many tickets did Noah sell in total? Round each number to the nearest hundred before estimating the sum.
2. Liam is collecting baseball cards. He has 287 cards in his main collection and 156 cards in his special edition collection. About how many baseball cards does Liam have in total? Round to the nearest hundred.
3. A rectangular swimming pool is drawn with a length of 48 meters and a width of 25 meters. What is the perimeter of the pool?

…and 3 more problems