Unit 3 Review

Jenny works at the zoo. Today she fed 7 tigers and some lions. Altogether she fed 13 animals. How many lions did she feed?

• 20 lions
• 6 lions
• 7 lions
• 21 lions

Nina had some flowers. She gave 8 of the flowers to her friends. She has 7 flowers left. How many flowers did she start with?

• 12 flowers
• 13 flowers
• 1 flower
• 15 flowers

Jake received 5 presents. He received 6 fewer presents than Erika received. How many presents did Erika receive?

• 1 present
• 12 presents
• 11 presents
• 10 presents

On Monday a store sold 286 apples. The store sold some more apples on Tuesday. The store sold 603 apples altogether. How many apples did the store sell on Tuesday?

• 317 apples
• 889 apples
• 316 apples
• 890 apples

Some students were in the gymnasium. Then 172 students left the gymnasium. Now there are 539 students in the gymnasium. How many students were in the gymnasium to start with?

• 168 students
• 710 students
• 167 students
• 711 students

Quinn has 562 marbles in her collection. Nadia has 112 fewer marbles. How many marbles does Nadia have?

• 674 marbles
• 450 marbles
• 675 marbles
• 440 marbles

Which will make the number sentence true?
8-2 < ? + 4

• 2
• any number less than 2
• 1
• any number greater than 2

On Saturday and Sunday, Khan spent 7 hours doing homework altogether. He did homework for 4 hours on Saturday. How many hours did Khan spend doing homework on Sunday?

• 7-4=?
• 7+4=?
• 7+?=4
• 11-7=?

Ralph had some pennies. Alice gave him 7 more. Then he had 15 pennies. How many did he have to start?

• 15-12= ?
• 15 + 7 = ?
• 15 + ? = 22
• ? + 7 = 15