3.5B Represent/Solve 1/2 step multiplication division Countdown

• 6 + 4 + 2

• 6 - 4 - 2

• 6 x 4 + 2

• 6 x 4 x 2

Audrey bought 3 packs of gum. There were 6 sticks of gum in each pack. She opened the packs and gave 8 sticks of gum to Devin. Which model best represents the number of sticks of gum that Audrey had left?

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Amaya has 7 strips of licorice. She will cut each strip into 9 pieces. Which array can be used to find the total number of pieces she will have?

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• 3 x 9 + 3

• 3 + 9 + 3

• 3 x 9 x 3

• 3 x 9 + 1

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A coach divided Andrew and 15 other players into 2 equal groups. After a few minutes Andrew left the first group and joined the second group. Which number sentences represents the number of players that were left in the first group. ​ ​ (a)  

• 16 x 2 - 1 = 31
• 16 - 2 - 1 = 13