Year 7 - Topic 9 - KO

Question 1

What is Positive?

Answer 1

A number greater than zero.

Question 2

What is Negative?

Answer 2

A number less than zero. Sometimes they are written with brackets around them.

Question 3

What is a Zero Pair?

Answer 3

A pair of numbers that, when added together, equal zero. They cancel each other out.

Question 4

What is Additive Inverse?

Answer 4

A number added to its additive inverse equals zero.

Question 5

Subtraction can be written as…

Answer 5

…adding the additive inverse. This can be more powerful than the idea of taking away.

Question 6

Reflection

Answer 6

An image or shape as it would be seen in a mirror.

Question 7

Symmetric

Answer 7

When two or more parts are identical after a flip, slide or turn.

Question 8

Index (plural indices) or power

Answer 8

The number of times a constant or variable has been multiplied by itself.

Question 9

Square root

Answer 9

Inverse of squaring. A number that can be multiplied by itself to give the original number.

Question 10

Cube or cubed

Answer 10

To multiply a number by itself three times.

Question 11

Solutions to x squared =

Answer 11

Equations involving squares have two solutions: one positive and one negative.