A
add
to put numbers together and calculate the total; the symbol is + (plus)
Numbers at Home and Outside
We see them on clothes labels, toothpaste tubes, and microwaves.
Numbers are on houses, street signs, cars, and buses.
10,000,000
ten million
Did you know?
Most people fall asleep in seven (7) minutes.
Cats spend 66% of their life asleep.
Koalas sleep three quarters (3/4) of the day.
Main idea: How people and animals sleep
What do you want more in your life?
What do you want to have less in your life?
;)
subtract
to take away a number or calculate the difference between two numbers; the symbol is - (minus)
Numbers Tell Us Time and Dates
The calendar has many dates and each date has a number.
Dates on food and medicine containers tell us how long we can use a product.
We check our watches and clocks to make sure we get to class on time.
100,000
one hundred thousand
the result of a math operation or calculation
value
There are many tools on a computer. One of those tools is a calculator. You find the calculator where?
in the Start Menu under Accessories.
multiply
to add a number multiple times; the symbol is x (times)
Numbers Walk with Us.
Our shoes have numbers to tell us our size.
We walk and run many steps.
We walk for a number of minutes or hours.
We walk a number of kilometers or miles.
100
one hundred
the position of a digit in a number
place value
Write: 1 + 1 = 2
you say: one plus one equals two
digit
a numeral from 0 to 9
Ordinal
1st first
2nd second
3rd third
4th fourth
5th fifth
Tens
10 ten
20 twenty
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
90ninety
more
a bigger quantity
Write: 4 - 2 = 2
Say: four minus two equals two
solve
to find an answer
Fractions
1/2 one half
1/4 one quarter
3/4 three quarters
1/3 one third
2/3 two thirds
1/5 one fifth
3/5 three fifths
1/8 one eighth
7/8 seven eighths
3/10 three tenths
Double Digits
10 ten
11 eleven
12 twelve
13 thirteen
14 fourteen
15 fifteen
16 sixteen
17 seventeen
18 eighteen
19 nineteen
20 twenty
21 twenty-one
22 twenty-two
23 twenty-three
24 twenty-four
25 twenty-five
26 twenty-six
27 twenty-seven
28 twenty-eight
29 twenty-nine
a smaller quantity
less
Write: 2 x 3 = 6
Say: two times three equals six