Show:
Single Digit Addition
Double Digit Addition
Single Digit Subtraction
Double Digit Subtraction
Addition & Subtraction Rules
100
-2 + [-5] = ______
What is -7
100
(+4) + (+32) =_____
What is 36
100
( -2) - ( -9) = ____
What is 7
100
( -80) - (+8) = ____
What is -88
100
When you add two numbers with the same sign you do this
What is add the numbers and keep their sign
200
7 + [-1] = ______
What is 6
200
( -33) + (+8) = ____
What is -25
200
(+4) - (+2) = ____
What is 2
200
(+8) - (+86) = _____
What is -78
200
You do this when you add two numbers with different signs
What is subtract smaller number and keep bigger numbers sign
300
[-6] + 9 = ______
What is 3
300
( -60) + ( -8) = ____
What is -68
300
( -3) - ( -5) =
What is 2
300
(+16) - ( -50) = _____
What is 66
300
You use this hint when subtracting integers
What is "keep, change, change"
400
10 + [-5] = ______
What is 5
400
(+43) + ( -22) = _____
What is 21
400
(+9) - ( -4) =
What is 13
400
( -48) - ( -16) = ____
What is 32
400
The hint "keep, change, change" means what?
What is keep the first number the same, change subtraction to addition and change second numbers sign
500
[-25] + [ 2 ] = ____
What is -23
500
( -94) + (+54) =_____
What is -40
500
(+6) - (+5) =
What is 1
500
( -85) - (+29) =
What is 114
500
You have to follow these after you "keep, change, change"
What is addition rules