NZ Level 6 (NZC) Level 1 (NCEA)

Using a calculator for rational or integer calculations

We want to use a calculator to find the value of

$-692\times133$−692×133

a

Before entering the calculation in to your calculator, it is useful to have an estimation in mind. Choose the correct statement:

The product of $-692$−692 and $133$133 will be positive.

A

The product of $-692$−692 and $133$133 will be negative.

B

The product of $-692$−692 and $133$133 will be positive.

A

The product of $-692$−692 and $133$133 will be negative.

B

b

Now, use your calculator to find the value of $-692\times133$−692×133:

c

Which of the following expressions has the same value?

$692\times133$692×133

A

$692\times\left(-133\right)$692×(−133)

B

$-692\times\left(-133\right)$−692×(−133)

C

$692\times133$692×133

A

$692\times\left(-133\right)$692×(−133)

B

$-692\times\left(-133\right)$−692×(−133)

C

Easy

Approx a minute

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Generalise the properties of operations with rational numbers, including the properties of exponents

Apply algebraic procedures in solving problems