MathU1 L2

P. 4-5

Let's ReviewNumbers

Numbers!

ONE

TWO

THREE

FOUR

FIVE

SIX

SEVEN

EIGHT

NINE

TEN

one

1

two

2

3

three

4

four

five

5

six

6

seven

7

eight

8

nine

9

ten

10

Missing Number Game

What’s Missing?What’s Missing?

Bigger NumbersBigger Numbers1,000

10,000

100,000

1,000,000

1,000,000,000

one thousand

ten thousand

one hundred thousand

one million

one billion

Review

Place Value Practice

Math in English

Math Symbols symbol word verb

"plus"“minus"“times"“divided by"addsubtractmultiplydivide

+-x÷

Let’s read equations.

2 + 8 = 102 + 8 = 109 – 4 = 59 – 4 = 5

6 x 3 = 186 x 3 = 1810 ÷ 2 = 5 10 ÷ 2 = 5

two plus eight equals tentwo plus eight equals tennine minus four equals fivenine minus four equals five

six times three equals eighteensix times three equals eighteenten divided by two equals fiveten divided by two equals five

Let’s solve equations.

Start with 20Start with 20 Add 4Add 4 Multiply by 4Multiply by 4Subtract 4Subtract 4 Divide by 2Divide by 2

What does it equal?

Let’s solve equations.

Start with 50Start with 50 Add 10Add 10Multiply by 3Multiply by 3Divide by 4Divide by 4 Subtract 20Subtract 20

What does it equal?

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Standard vs Expanded vs Word Form

65Standard form - 65

Expanded form – 60 + 5 = 65

Word form – Sixty Five

Standard vs Expanded vs Word Form

122Standard form - 122

Expanded form - 100 + 20 + 2 = 122

Word form –

One Hundred Twenty Two

Standard vs Expanded vs Word Form

1444Standard form - 1444

Expanded form - 1000 + 400 + 44 +4 = 1444Word form –

One Thousand Four Hundred Forty Four

Board Practice

Section the board off into three parts; standard, expanded, and word form. Call out a random number and have volunteers come up and write the answers.

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Standard Expanded Word Form Form Form

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