Math 7 Summer Math Flashcard Review

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is given by the formula: \( \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \)

Front

Calculate the area of a triangle with base 10 cm and height 6 cm.

Back

The area is \( \frac{1}{2} \times 10 \times 6 = 30 \) cm².

Front

What is the order of operations in mathematics?

Back

The order of operations is: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

Evaluate the expression: 4 + 3 × 2².

Back

Using the order of operations: 4 + 3 × 4 = 4 + 12 = 16.

Front

What is exponential notation?

Back

Exponential notation is a way to express repeated multiplication of the same number. For example, \( 2 \times 2 \times 2 \times 2 \times 2 \) can be written as \( 2^5 \).

Front

Write the expression 2 × 2 × 2 × 2 × 2 in exponential form.

Back

The expression can be written as \( 2^5 \).

Front

Calculate the area of a triangle with base 12 m and height 9 m.

Back

The area is \( \frac{1}{2} \times 12 \times 9 = 54 \) m².

Front

What is the value of the expression: 18 ÷ 3 + 2 × 4?

Back

Using the order of operations: 18 ÷ 3 + 8 = 6 + 8 = 14.

Front

What does the term 'base' refer to in geometry?

Back

In geometry, the base of a shape is the side on which the shape stands or the side that is considered the bottom.

Front

What does the term 'height' refer to in geometry?

Back

The height of a shape is the perpendicular distance from the base to the topmost point.