Question

A pack of gum has $5$ pieces. You have $7$ such packs of gum. You give $6$ pieces of gum to each of your $4$ friends. How many pieces of gum do you have left?

• A. $24$
• B. $12$
• C. $35$
• D. $11$

Answer 1

The correct option is D $11$

Number of pieces in each pack $=5$
Number of packs $=7$

Total number of pieces of gum $=$ Number of pieces in each pack $\times$ Number of packs
$=5\times 7$
$=35$
The fact family for these numbers:

There are a total of $35$ pieces of gum.

Number of friends $=4$
Number of pieces of gum given to each friend $=6$
Total number of pieces given to friends $=$ Number of friends $\times$ Number of pieces given to each friend.
$=4\times 6$
$=24$

The fact family for these numbers:

$24$ pieces of gum are distributed among friends.
Hence, number of pieces left with you $=35-24$
$=11$
$11$ pieces of gum are left with you.

Hence, option B is correct.