How Can You Model with Math?

Keisha bought 2 yards of felt fabric to make some puppets. Tanya bought 6 yards of felt fabric. Each yard of felt costs the same amount. How many yards of felt did the girls buy in all?

• 8 yards

• 6 yards

• 10 yards

• 12 yards

Keisha bought 2 yards of felt to make some puppets. Tanya bought 6 yards of felt. Each yard of felt costs $2. How much did the girls spend on felt in all?

• $10

• $12

• $14

• $16

What multiplication equation would match this bar diagram?

• 2x8=16

• 8x2=10

• 2+2+2+2+2+2+2=14

• 2+2+2+2+2+2+2

A pack of gum contains 5 pieces. Phil had 7 packs of gum before he lost 2 pieces. How many pieces of gum does Phil have now? What is the hidden question you need to answer before you can solve the problem?

• How many pieces of gum did Phil have before he lost 2 pieces?

• How many packs of gum did Phil lose?

• How many pieces are in one pack of gum?

• How many pieces of gum did Phil eat?

A pack of gum contains 5 pieces. Phil had 7 packs of gum before he lost 2 pieces. How many pieces of gum does Phil have now?

• 33 pieces because:

  Phil had 7 packs × 5 pieces = 35 pieces. After losing 2 pieces: 35 - 2 = 33 pieces.

• 37 pieces because:

  Phil had 7 packs × 5 pieces = 35 pieces. After losing 2 pieces: 35 + 2 = 37 pieces.

• 30 pieces because:

  Phil had 7 packs × 5 pieces = 35 pieces. After losing 2 pieces: 35 - 5 = 30 pieces.

• 70 pieces because:

  Phil had 7 packs × 5 pieces = 35 pieces. After losing 2 pieces: 35 × 2 = 70 pieces.

Jen bought 4 tickets. Amber bought 5 tickets. The tickets cost $2 each. How much did the girls spend on tickets in all?

• $16

• $18

• $11

• $20

David and Jon are placing coffee orders for their friends. David orders 10 large cups of coffee. Jon orders 4 fewer large cups than David. David pays for his order with a $50 bill. Did David have enough money? (no extra tax is included in this example)

• No

• Yes

David and Jon are placing coffee orders for their friends.

David orders 10 large cups of coffee. Jon orders 4 fewer

large cups than David. How many coffees did Jon order?

• 10

• 4

• 6

• 14

If you were to order one coffee of each size, what would the total cost be? (no extra tax is included in this example)

• $10

• $9

• $12

• $11

David orders 10 large cups of coffee. Jon orders 4 fewer large cups than David.

How much money did Jon spend on his coffee? (no extra tax is included in this example)

• $5

• $30

• $25

• $35