Add and Subtract within 1,000
A bakery sold 367 cupcakes in the morning and 245 in the afternoon. How many cupcakes were sold in total?
612 cupcakes
Sarah has 4 baskets of apples. Each basket contains 30 apples. How many apples does she have in total?
120 apples
Estimate the sum: 568 + 432 ≈ ____
1,000
Estimate the product: 5 × 90 ≈ ____
500
Liam added 478 + 356 and got 724. What mistake did he make?
A) He forgot to carry over in the ones place.
B) He added incorrectly in the tens place.
C) He subtracted instead of adding.
D) He made a mistake in the hundreds place.
A) He forgot to carry over in the ones place.
Jason has 854 baseball cards. He gives 279 cards to his friend. How many baseball cards does Jason have left?
575 baseball cards
A factory produces 7 boxes of pencils. Each box contains 40 pencils. How many pencils are there in total?
280 pencils
Estimate the difference: 942 - 378 ≈ ____
500
Estimate the product: 8 × 70 ≈ ____
600
A student solved 825 - 496 and got 431. What is the correct answer?
A) 329
B) 339
C) 349
D) 359
B) 329
A school library has 679 books on one shelf and 325 books on another shelf. How many books are there in total?
1,004 books
There are 8 classrooms in a school. Each classroom has 50 chairs. How many chairs are there in total?
400 chairs
Olivia has 438 marbles, and her friend gives her 267 more. About how many marbles does Olivia have in total?
A farmer has 7 fields, and each field has about 90 trees. About how many trees does the farmer have in total?
600 trees
Kayla added 563 + 249 and got 702. What should she have gotten?
A) 712
B) 812
C) 822
D) 902
A) 812
Mia counted 738 marbles in her collection. she gave 456 marbles to her younger brother. Now she has ______ marbles left.
282
A farmer planted 6 rows of trees. Each row has 70 trees. The total number of trees is ____.
420
A grocery store ordered 854 cans of soup. About 372 cans were sold in one week. About how many cans are left?
500 cans
A company packs 6 boxes of markers, with each box containing about 60 markers. Estimate the total number of markers packed.
400 markers
Carl solved 4 × 90 and got 3,600. What should he have done differently?
A) Multiplied correctly without extra zeros.
B) Multiplied 4 × 9 instead of 90.
C) Added instead of multiplied.
D) Switched the numbers around.
A) Multiplied correctly without extra zeros.
A truck driver traveled 248 miles on Monday and 367 miles on Tuesday. The total number of miles traveled is ____.
615 miles
The store ordered 8 stacks of notebooks. Each stack has 80 notebooks. The store received ____ notebooks in total.
640
A train traveled 729 miles on Monday and 281 miles on Tuesday. Estimate the total distance the train traveled.
1,000 miles
A school orders 9 packs of pencils, with each pack containing about 20 pencils. About how many pencils were ordered?
200 pencils
A student solved 6 × 70 = 4200. Explain the mistake and write the correct answer:
Mistake: Added an extra zero, calculating 6 × 700 instead.
Correct answer: 420