Integer powerpoint
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The document defines positive and negative numbers, with positive numbers being greater than zero and negative numbers being less than zero. It provides examples of how negative numbers are used to measure temperatures below zero, depths under sea level, and debt. It then explains how to add and subtract integers using a number line, with direction determined by the sign of the number. Finally, it briefly discusses multiplying integers and taking the square root of positive and negative numbers.
Integer powerpoint
- 1. Positive and Negative Numbers by Monica Yuskaitis
- 2. Definition • Positive number – a number greater than zero. 0 1 2 3 4 5 6
- 3. Definition • Negative number – a number less than zero. -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
- 4. Definition • Opposite Numbers – numbers that are the same distance from zero in the opposite direction -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
- 5. Definition • Integers – Integers are all the whole numbers and all of their opposites on the negative number line including zero. 7 opposite -7
- 6. Negative Numbers Are Used to Measure Temperature
- 7. Negative Numbers Are Used to Measure Under Sea Level 30 20 10 0 -10 -20 -30 -40
- 8. Negative Numbers Are Used to Show Debt Let’s say your parents bought a car but had to get a loan from the bank for $5,000. When counting all their money they add in -$5.000 to show they still owe the bank.
- 9. Positive & Negative Numbers Working with positive and negative numbers is like driving in traffic. You have to watch the traffic signs and follow the driving rules.
- 10. Hint • If you don’t see a negative or positive sign in front of a number it is positive. +9
- 11. One Way to Add Integers Is With a Number Line When the number is positive count to the right. When the number is negative count to the left. - + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
- 12. One Way to Add Integers Is With a Number Line +3 + -5 = -2 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 13. One Way to Add Integers Is With a Number Line +6 + -4 = +2 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 14. One Way to Add Integers Is With a Number Line +3 + -7 = -4 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 15. One Way to Add Integers Is With a Number Line -3 + +7 = +4 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 16. One Way to Add Integers Is With a Number Line -5 + +3 = +4 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 17. One Way to Add Integers Is With a Number Line -2 + +8 = +6 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 18. One Way to Add Integers Is With a Number Line -5 + +2 = -3 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 19. One Way to Add Integers Is With a Number Line -4 + -2 = -6 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 20. One Way to Add Integers Is With a Number Line -2 + -3 = -5 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 21. One Way to Add Integers Is With a Number Line -1 + -4 = -5 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 22. One Way to Add Integers Is With a Number Line -4 + -1 = -5 - -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 -
- 23. One Way to Add Integers Is With a Number Line 4+1= 5 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 24. One Way to Add Integers Is With a Number Line 3+2=5 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 25. One Way to Add Integers Is With a Number Line 1+5= 6 + -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 +
- 26. Adding Integers +9
- 27. Subtracting Integers 8- 8-4= 8-3= 8-2= 8-1= 8-0= +9 8- -1= 8- -2 = 8- -3 = 8 - -4 =
- 28. Subtracting Integers • Adding a negative number is the same as subtracting a positive number. 1 + -5 = 1 - 5 • Subtracting a negative number is the same as adding a positive number. 1 - -5 = 1 + 5
- 29. Multiplying Integers 8- 3x3= -3x3= 3x2= -3x2= 3x1= -3x1= 3x0= -3x0= 3x–1= -3x–1= +9 3x–2= -3x–2= 3x–3= -3x–3=
- 30. What About Square Numbers and Square Roots 5x5= -5 x -5 = • Therefore what could the answers be for square root of 25?