# Tutor profile: Kathryn T.

## Questions

### Subject: Pre-Algebra

21 ÷ 3 + (3 × 9) × 9 + 5

Step 1: Parenthesis () - Solve all problems in parenthesis FIRST. Step 2: Exponents - Next solve any numbers that have exponents. Step 3: Multiply or Divide ×, ÷ Then solve any multiplication or division problems (going from left to right). Step 4: Add or Subtract +, - Finally solve any addition or subtraction problems (going from left to right). Step 1: (3 × 9) = 27 21 ÷ 3 + 27 × 9 + 5 Step 2: 21 ÷ 3 = 7 7 + 27 × 9 + 5 Step 3: 27 × 9 = 243 7 + 243 + 5 Step 4: 7 + 243 = 250 250 + 5 Step 5: 250 + 5 = 255 255

### Subject: Basic Math

A large box contains 18 small boxes and each small box contains 25 chocolate bars. How many chocolate bars are in the large box?

If there 25 bars in 1 box, then there would be 25 bars times 18 boxes to get the answer. The number of chocolate bars is equal to 18 × 25 = 450. There are 450 chocolate bars in a large box.

### Subject: Algebra

A rectangular garden is 12m by 5m, What is its area?

Use w for width of rectangle: w = 12m Use h for height of rectangle: h = 5m Formula for Area of a Rectangle: A = w × h We are being asked for the Area. Plug our numbers into the formula: A = w × h = 12 × 5 = 60 m2 The area is 60 square meters.

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