My Math Quiz 7.1-7.4

18 - (3 × 4) =

(10² - 2) ÷ 2 =

(10 - 8) × 7 =

(18 ÷ 2) × 8 =

divide 15 by 3, then add 4.

•  $15÷3+4$  
  

•  $4\ +\ 15\div3$  

•  $15\ +\ 3\ \div4$  

•  $3\ +\ 4\ \div15$  

multiply 12 by 2, then subtract 13

• 12 × 2 - 13

• 13 × 2 - 12

• 6 × 2 - 13

• 13 + 2 - 12

subtract 6 from 24, then divide by 3

• (24 - 6) ÷ 3

• (6 - 24) ÷ 3

• (24 - 3) ÷ 6

• 24 - 6 ÷ 3

multiply 8 by 7, then subtract 26

• 8 × 7 - 26

• 8 + 7 - 26

• 26 - 8 + 7

• 26 x 8 - 7

Lena is 4 years older that her brother Sebastian. Sebastian is 3 years older that their sister Carmen. Carmen is 9 years younger than their brother Eduardo. If Eduardo is 22 years old, how old is Lena?

Members of the basketball team sold raffle tickets to raise money for new equipment. The first 30 tickets sold for $5 each. To sell more tickets, the players lowered the price of each ticket to $3. If the team raised a total of $285, how many $3 tickets were sold?