1. Banking 1.1 Numbers 1.2 Addition
5/7/2018 1
Basic Math Functions
1.1 Numbers
1.2 Addition
Chapter 1

2. Banking
5/7/2018
1.1 Numbers
OBJECTIVES
Identify terms used with the decimal number system.
Convert numbers to or from amounts in word forms.
Round numbers.
Chapter 1

3. Key Terms decimal number system digits numeral decimal point
Banking
5/7/2018
Key Terms
decimal number system
digits
numeral
decimal point
positions (places)
whole number part
decimal part
word form
approximate
rounding
Chapter 1

4. Banking
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Objective 2 Write a percent as a decimal.
Objective 3 Round numbers.
Example
A portable DVD player and digital photo frame cost $ What is the cost to the nearest dollar? STEPS Round up. The cost to the nearest dollar is $220.
Chapter 1

5. Banking
5/7/2018
Objective 3 Round numbers.
Example
A portable DVD player and digital photo frame cost $ What is the cost to the nearest dollar? STEPS Do not round up. The cost to the nearest dollar is $219.
Chapter 1

6. Round 5.35 to the nearest tenth. STEPS 5 is equal to 5. Round up. 5.4
Banking
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Objective 3 Round numbers.
Example
Round 5.35 to the nearest tenth. STEPS 5 is equal to 5. Round up. 5.4
Chapter 1

7. Banking
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Objective 3 Round numbers.
Example
Round to the nearest hundredth. STEPS 1 is less than 5. Do not round up. 0.98
Chapter 1

8. Round 0.99 to the nearest tenth. STEPS 9 is more than 5. Round up. 1.0
Banking
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Objective 3 Round numbers.
Example
Round 0.99 to the nearest tenth. STEPS 9 is more than 5. Round up. 1.0
Chapter 1

9. Banking
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Objective 3 Round numbers.
Example
Round to the nearest thousandth. STEPS 9 is more than 5. Round up
Chapter 1

10. Banking
5/7/2018
Objective 3 Round numbers.
Example
Round 2,976.8 to the nearest hundred. STEPS 7 is more than 5. Round up. Change all the digits to the right of the hundreds place to zeros. 3,000
Chapter 1

11. 1.2 Addition OBJECTIVES Identify terms used with addition.
Banking
5/7/2018
1.2 Addition
OBJECTIVES
Identify terms used with addition.
Align numbers correctly for adding.
Align decimal points in addition.
Add mentally.
Add by tens mentally.
Add horizontally.
Use the Four Step Problem Solving Plan.
Chapter 1

12. Key Terms addition addend sum (total) (amount) subtotal Banking
5/7/2018
Key Terms
addition
addend
sum (total) (amount)
subtotal
Chapter 1

13. Identify the terms in the addition problem. STEPS
Banking
5/7/2018
Objective 1 Identify terms used with addition.
Example
Identify the terms in the addition problem. STEPS
Chapter 1

14. Banking
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Objective 2 Align numbers correctly for adding.
Example
Line up the numbers to add. 8, , STEPS Align the ones digits.
Chapter 1

15. Banking
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Objective 3 Align decimal points in addition.
Example
Line up the numbers to add. 5, , STEPS Align the decimal points.
Chapter 1

16. Banking
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Objective 4 Add mentally.
Example
Add mentally. STEPS Add the units by thinking is 10, + 6 is 16, + 3 is 19, + 3 is 22, + 1 is 23 Write 3 in the units position of the answer. Write 2 over the 9 in the tens position.
Chapter 1

17. Banking
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Objective 4 Add mentally.
Example
Add mentally. STEPS Add the tens by thinking is 11, + 4 is 15, + 1 is 16, + 8 is 24, + 4 is 28 Write 8 in the tens position of the answer. Write 2 over the 3 in the hundreds position.
Chapter 1

18. Banking
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Objective 4 Add mentally.
Example
Add mentally. STEPS Add the hundreds by thinking is 5, + 9 is 14, + 3 is 17, + 4 is 21, + 2 is 23, + 9 is 32 Write 32 with a comma after the 3 in the hundreds (and thousands) position of the answer.
Chapter 1

19. Add mentally. Example Objective 4 Add mentally. Banking 5/7/2018
Chapter 1

20. Add using combinations of 10. STEPS Align the ones digits.
Banking
5/7/2018
Objective 5 Add by tens mentally.
Example
Add using combinations of 10. STEPS Align the ones digits.
Chapter 1

21. Banking
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Objective 6 Add horizontally.
Example
Add: $ $ STEPS Add the hundredths column, 1 + 8, and write the answer, 9, at the far right as shown. 9 Add the tenths column, 1 + 8, and write the answer, 9, to the left of the first 9 as shown. 99 Place the decimal point next to the 9 as shown. .99 Add the units, tens, and hundreds columns following the same procedure given above. $745.99
Chapter 1

22. Four Step Problem Solving Plan
Banking
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Four Step Problem Solving Plan
1. Clues
Chapter 1

23. Four Step Problem Solving Plan
Banking
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Four Step Problem Solving Plan
2. Action Plan
3. Solve
4. Conclusion
Chapter 1

24. Banking
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Objective 7 Use the Four Step Problem Solving Plan.
Example
You have a balance on your frequent flyer statement of 16,452 miles. You have earned the following miles this month that have not been posted on your monthly statement: 345, 280, 500, 190, 310. You want to know how many miles you now have to see if you have enough for a free ticket. You need 20,000 miles for the free ticket. STEPS Use the Problem Solving Plan.
Chapter 1

25. Banking
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Objective 7 Use the Four Step Problem Solving Plan.
Example
Balance:16,452 miles Earned: 345, 280, 500, 190, 310 Free ticket: 20,000 miles STEPS
Chapter 1