1. Addition / Subtraction of Decimal Fractions When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem.

2. EXAMPLE # 1 : ADD 3.253 + 10.551 Addition / Subtraction of Decimal Fractions

3. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 1 : ADD 3.253 + 10.551 3.253 10.551 + Notice how I lined up the decimals… Addition / Subtraction of Decimal Fractions

4. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 1 : ADD 3.253 + 10.551 3.253 10.551 + Now add as usual, carry if needed… 1 13.804 Addition / Subtraction of Decimal Fractions

5. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 2 : ADD 7.125 + 0.568 + 5.75 Addition / Subtraction of Decimal Fractions

6. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 2 : ADD 7.125 + 0.568 + 5.75 7.125 0.568 5.750 Once again, I lined up the decimals… + Addition / Subtraction of Decimal Fractions

7. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 2 : ADD 7.125 + 0.568 + 5.75 7.125 0.568 5.750 + 13.443 1 1 1 Now add as usual, carry if needed… Addition / Subtraction of Decimal Fractions

8. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 3 : SUBTRACT 44.6 – 24.3 Addition / Subtraction of Decimal Fractions

9. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 3 : SUBTRACT 44.6 – 24.3 44.6 24.3 - Line up your decimals… Addition / Subtraction of Decimal Fractions

10. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 3 : SUBTRACT 44.6 – 24.3 44.6 24.3 - Subtract as usual… 20.3 Addition / Subtraction of Decimal Fractions

11. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 4 : SUBTRACT 285.08 – 164.5 Addition / Subtraction of Decimal Fractions

12. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 4 : SUBTRACT 285.08 – 164.5 285.08 164.50 - Line up your decimals… Addition / Subtraction of Decimal Fractions

13. When adding / subtracting decimal fractions. Be sure to “ line up “ your decimals to keep the place values the same. Add / Subtract each column just like whole numbers, placing the decimal in the answer directly below the decimals in the original problem. EXAMPLE # 4 : SUBTRACT 285.08 – 164.5 285.08 164.50 - Subtract as usual…you might have to borrow 120.58 4 1 Addition / Subtraction of Decimal Fractions

14. APPLICATIONS Many working drawings use toleranced dimensions. A tolerance is the difference that is allowed in the size of the part. The dimensions on this shim show the basic size and the tolerance. 6.357 2.725

15. APPLICATIONS To find the largest allowable dimensions, we will add the desired dimension and the “+” tolerance. 6.357 2.725

16. APPLICATIONS 6.357 2.725 To find the largest allowable dimensions, we will add the desired dimension and the “+” tolerance.

17. APPLICATIONS 6.357 2.725 To find the largest allowable dimensions, we will add the desired dimension and the “+” tolerance. To find the smallest allowable dimension, we will subtract the “ – “ tolerance from the desired dimension. 6 1

18. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B

19. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B

20. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B

21. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B

22. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B

23. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B

24. APPLICATIONS EXAMPLE : Find dimensions A and B in the figure below. 1.3162 1.0591 0.3756 1.8653 1.2765 1.4712 0.7871 2.9965 A B