10-6

Mr. Kim buys 5 adventure books for his class. Then he buys a mystery book. Is it reasonable to say he spent $53? Explain why or why not.

At the train station, Matt buys breakfast for $4 and 3 weekly train passes for $9 each. How much does Matt spend at the station?

• $21

• $31

• $18

• $55

Tags

CCSS.3.OA.D.8

Ava shares 42 stickers evenly among 6 friends. Then she gives each friend 4 more stickers. How many stickers does each friend receive?

• 11 stickers

• 25 stickers

• 5 stickers

• 33 stickers

Tags

CCSS.3.OA.D.8

Maria walks 3 minutes to the bus stop. Then she rides the bus 8 minutes to get to school. She does this 5 days per week. She says she spends 55 minutes traveling to school each week. Is the answer reasonable? Show your thinking.

Tags

CCSS.3.OA.D.8

Marcus spends $36 on sunflowers and buys 4 zinnia plants for his garden. Marcus says he spent $98 on plants. Is the answer reasonable? Show your thinking.

(a)  

John has 7 packages of pencils. There are 9 pencils in each package. He donates 49 pencils to the school supply closet. How many pencils does John have left? Then use an estimate to show that your answer is reasonable.

Tags

CCSS.3.OA.D.8

Evelyn has 80 beads. She uses 24 for a necklace. She wants to use the rest to make 8 bracelets with the same number of beads on each. How many beads will each bracelet have? Then use an estimate to show that your answer is reasonable.

Tags

CCSS.3.OA.D.8

Hiro designs a boat to carry research supplies. His boat carries 6 crates filled with 9 boxes each. It also carries 5 boxes of snacks. He thinks the boat carries 59 boxes. Is his answer reasonable? Then use an estimate to show that your answer is reasonable.

Kara has a box of 30 crackers. She eats 3 and wants to give the rest to 5 friends to share equally. She estimates there are enough for each friend to get 5 crackers. Explain Kara's estimate. Then use an estimate to show that your answer is reasonable.

Reza earns $7 a week doing chores. He saves his money for 9 weeks. Then he spends $12 on a baseball. How much money does he have left? Choose the reasonable answer.

• $28

• $43

• $51

• $60

Tags

CCSS.3.OA.D.8