Math Mastery: Problem-Solving & Estimation Challenge

Lily has 3 pieces of ribbon, each measuring 2.5 meters. She cuts 1 meter from each piece. How much ribbon does she have left in total?

• 6 meters

• 3 meters

• 5 meters

• 4.5 meters

Tags

CCSS.4.MD.A.2

A gardener plants 4 rows of flowers, with 6 flowers in each row. If 5 flowers die, how many flowers are still alive?

• 19

• 20

• 18

• 15

Tags

CCSS.2.OA.C.4

Tom has 12 apples. He gives 3 apples to each of his 4 friends. How many apples does he have left?

• 6

• 0

• 3

• 9

Tags

CCSS.3.OA.A.3

A box can hold 15 books. If Sarah has 3 boxes and fills 2 completely, how many books does she have left to fill the third box?

• 20

• 10

• 15

• 5

Tags

CCSS.3.OA.A.3

A baker made 48 cookies. He sold 20 cookies and then baked 12 more. How many cookies does he have now?

• 40

• 52

• 36

• 28

Tags

CCSS.2.OA.A.1

Emma bought 5 packs of stickers, with 8 stickers in each pack. If she uses 10 stickers, how many does she have left?

• 40

• 35

• 30

• 25

Tags

CCSS.3.OA.A.3

A school has 120 students. If 30 students are absent and 10 new students enroll, how many students are there now?

• 130

• 90

• 110

• 100

Tags

CCSS.2.OA.A.1

A recipe calls for 2.5 cups of flour. If you want to make half the recipe, how much flour do you need?

• 1.25 cups of flour

• 2 cups of flour

• 3 cups of flour

• 1 cup of flour

Tags

CCSS.7.EE.B.3

A toy store has 150 toys. If they sell 45 toys and receive a shipment of 30 new toys, how many toys do they have now?

• 120

• 135

• 150

• 100

Tags

CCSS.3.OA.D.8

A farmer has 60 eggs. He sells 25 eggs and then buys 15 more. How many eggs does he have in total?

• 45

• 55

• 50

• 40

Tags

CCSS.3.OA.D.8