80 likes | 203 Views
2-2 subtracting integers. By: The Great One, The Magnificent, The One and Only Wonderful Mr. Graham. REMEMBER ADDITION RULES. George says, If my signs are the same, add and keep the signs!!!!!!!!!!!!.
E N D
2-2 subtracting integers By: The Great One, The Magnificent, The One and Only Wonderful Mr. Graham.
REMEMBER ADDITION RULES George says, If my signs are the same, add and keep the signs!!!!!!!!!!!! If my signs are different, subtract the numbers and keep the sign of the biggest absolute value!!!!!!!!!!!!!! George also says that if you have any left over bananas, save them for him…………and he says Mr. Graham is the greatest, so listen to him!!
ONE RULE…Learn it, live it, love it! • KCO KEEP IT, CHANGE IT, OPPOSITE • Keep the first #, change the operation sign, take the opposite of the last number. • THEN FOLLOW YOUR RULES FOR ADDITION!!!!
Examples • -5 – 7 = ? • Keep -5 • Change (-) subtraction to (+) addition • Use the opposite of 7, which is -7. • Now we have -5 + -7 = • Signs are the same, so we add and keep the sign. • -5 + -7 = -12
Examples • 2 – (-4) = • Keep 2 • Change (-) to (+) • Use the opposite of (-4), which is 4 • 2 + 4 = 6 • So…. 2 – (-4) = 6