Let's review The laws of arithmetic

First, I will check your vocabularies😂

It doesn't matter how we group the numbers when we ADD or when we MULTIPLY. Ex: (a + b) + c = a + (b + c).

What is this rule?

We can swap numbers over and still get the same answer when we ADD or when we MULTIPLY. Ex: a + b = b + a

What is this rule?

a(b+c) = ab + ac

What is this rule?

All of these below:

(...), [...], {...}

What are they?

This order of operations stands for Parentheses, Exponent, Multiplication and Division, Addition and Subtraction

Amazing😍

Now, let's move on to practice!!!

Complete the calculation

36 × 97 = 36 × (100 - [...])

Complete the calculation

(10 - [...]) × 10 = 10

Which number sentence is equivalent to 8 × 12?

• (8 × 10) + (8 × 2)

• (8 × 1) + (8 × 2)

• (8 × 10) + 2

• 8 + (10 × 2)

Draw brackets to make each expression equal 10

20 ÷ 4 - 2

Use these numbers together with brackets and operation signs to make the target number.

2, 3, 5 Target 4

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