Representing and solving problems involving multiplication of numbers within 100

Serenity made 6 necklaces. Each necklace had 8 charms on it. She gave away 3 necklaces, how many charms does she have left?

• 24 charms
• 45 charms
• 11 charms
• 17 charms

Mona prepared rainbow colored cupcakes for dessert. If she made one box of cupcakes for each of the 7 colors of the rainbow and each box has 6 cupcakes, how many cupcakes did Mona prepare in total?

• 43

• 35

• 42

There are 8 cans of Dr. Pepper in a pack. John bought 4 packs. How many cans of Dr. Pepper are there in all?

• 32

• 36

• 22

• 12

Wind is a renewable source of energy. Wind farms use large wind turbines that produce electricity. Suppose 25 new wind farms are built and each wind farm has 18 wind turbines. How many wind turbines are built?

• 450 wind turbines

• 43 wind turbines

• 7 wind turbines

• 440 wind turbines

Shari has 6 boxes of rocks. Each box has 80 rocks in it. How many rocks does Shari have in total?

• 480

• 460

• 420

A tour group of 68 people has an overnight stay at a hotel. Each person will receive a 3-pancake breakfast. How many pancakes will the hotel serve to the tour group?

• 184

• 194

• 204

• 214

Ms. Gladney was making 23 batches of brownies. There were 15 brownies in each batch. How many brownies did she make?

• 115

• 230

• 345

• 445

Jessica worked four hours for nine days. How many hours did she work in total ?

• 32

• 36

• 40

• 28

Angela and her friend Daniela played swimming-pool-basketball. Each basket was worth 3 points. Angela scored 9 points. Daniela scored 6 points. What is the total number of baskets made during this game?

• The two made 15 Baskets.

• The two made 5 Baskets.

• The two made 12 Baskets.

• The two made 3 Baskets.

Using multiplication, solve the following word problem: If there are 3 bags and each bag contains 4 apples, how many apples are there in total?

• 7

• 16

• 2

• 12