Properties of Addition
Place Values
Addition
Subtraction
Challenge
100
5+0=5
What property of addition is this?
Identity Property
100
What is the standard form of 3456?
a)3456
b)three thousand, four hundred fifty-six
c)3000+400+50+6
a) 3456
100
11 + 12 = ?
23
100
78 - 7 = ?
71
100
Gigi has no money. Kingsley, Ethan, Nathan, Phoenix, Dylan, and Owen EACH give her $2. How much money does Gigi have now?
$12
2 + 2 + 2 + 2 + 2 + 2 = 2 X 6 = $12
200
1+2+3=6 , 3+2+1=6
What property of addition is this?
Commutative Property
200
What is the expanded form of 6978?
a)6978
b)6000+900+70+8
c)six thousand, nine hundred seventy-eight
b)6000+900+70+8
200
12 + 18 = ?
30
200
45 - 9 = ?
36
200
Kelly is 7 years old. On her first birthday, she got 1 candle. On her 2nd birthday, she got 2 candles (3 candles when she turned 3....etc). How many candles will she have IN TOTAL (counting all the candles she got before) on her 7th birthday?
1 + 2 + 3 + 4 + 5 + 6 + 7 = 28 candles
300
4+5=9 , 5+4=9
What property of addition is this?
Commutative Property
300
What is the word form of 1234?
a)one thousand, two hundred forty-three
b)one thousand, two hundred thirty-four
c)one thousand, three hundred twenty-four
b)one thousand, two hundred thirty-four
300
123 + 457 = ?
580
300
478 - 399 = ?
79
300
I am a two-digit number. The digit in my tens place is double the digit in my one's place. The sum of all my digits equals to 6. What number am I?
42
400
(1+3)+5=9 , 1+(3+5)=9
What property of addition is this?
Associative Property
400
2467 = 2000+ ______ + 60 + 7
400
400
745 + 896 = ?
1641
400
1001 - 998 = ?
3
400
65 people
x - 19 + 17 = 63
x = 65
500
(2+4)+6=12 , 2+(4+6)=12
What property of addition is this?
Associative Property
500
1234 + 2345 = 3000 + _______ + 70 + 9
500
500
2345 + 4567 = ?
6912
500
4321 - 3214 = ?
1107
500
I am a three-digit number. The digit in my hundreds place is three times the digit in my tens place. The digit in my one's place is one less than the digit in my tens place. The product of all my digits is 12. What number am I?
621