Math 6 Quarter1 Week 4 Day 2 decimals (1).pptx

decimals

1. Adding & Subtracting Decimals and Mixed Decimals Through Ten Thousandths Without or With Regrouping Mathematics 6 | 1 st Quarter | week 4

2. 1. 37. 581 + 71. 947 + 84. 379 = N 2. 9. 0576 + 7. 0057 + 28. 4555 = N 3. 4. 727 + 2. 0962 + 0. 9542 + 1. 8152 = N 4. 16. 234 – 14. 103 = N 5. 758. 947 – 235. 506=N 6. Sammy weighs 64. 28 kg. and Piolo weighs 47. 21 kg. About how much more does Sammy weigh? 7.Father gave mother three thousand pesos for the different bills due for payment. Electric bill- P1, 487.68, water bill – P796. 34, telephone bill – P596. 72. How much did mother pay for the bills?

3. DRILL Give the missing number orally to make the statement TRUE.

4. DRILL 41 + _____ = 94 ___ + 44 = 86 37 + _____ = 97 72 - ____ 36 ____ - 41 = 65 Give the missing number orally to make the statement TRUE. 53 42 60 36 106

5. REVIEW Find the sum or difference.

6. REVIEW 0.77 + 3.12 = 1.24 + 0.12 = 10.97 – 9.02 = 5.55 – 0.42 = 10.05 – 3.28 = Find the sum or difference. 3.89 1.36 1.95 5.13 6.77

7. Read. Andeng does not easily throw things or objects like paper bags, plastic spoons and forks, pieces or strings or ribbons, Christmas or birthday wrappers and others. She neatly stores them in a box or cabinet for future use.

8. Questions: What does Andeng do with the used things or objects? What kind of girl is she? Do you also recycle things / objects? Why?

9. Problem Opener: One day, Precious, Andrea’s younger sister, needed 4 pieces of ribbons for her project. Linda gave her yellow, pink, blue and red ribbons with lengths 0.2 m, 0.48 m, 0.3 m and 0.15 m respectively.

10. Questions: How long are the yellow and blue ribbons if you put together? When Precious compared the red and pink ribbons. Which is longer? By how much?

11. Analysis: What are the lengths of yellow and blue ribbons? 0.2 m + 0.3 m = N

12. Analysis: With your strip of paper, fold it into 10 equal parts and label each segment. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

13. Analysis: Color / shade the 0.2 m or 2 parts with yellow crayon then shade / color the 0.3 or 3 parts with blue crayon. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

14. Analysis: Count the shaded portion. How many parts of the strip of paper are shaded / colored? 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 are 0.2 m + 0.3 m = 0.5 m

15. Analysis: What is the other way of finding the sum? Use your show-me-board and show your solution.

16. Analysis: What are the lengths of the red and pink ribbons? 0.48 m – 0.15 m = N

17. Analysis: Find the difference using a 10 x 10 grid. Count the number of squares in the grid. What part of the grid is one square? 2 squares? 12 squares?

18. Analysis: Shade / color the part of the grid that represents the length of the pink ribbon. Color it with pink or lighter shade of color.

19. Analysis: 0.48 m

20. Analysis: Take away 0.15 m from 0.48 m which is the shaded part. Shaded it with red or any dark color.

21. Analysis: 0.15 m

22. Analysis: Count the remaining portion that is shaded with pink or lighter color. What part of the whole is that?

23. Analysis: 0.33 m

24. Analysis: What is the other way of finding the difference? Use your show-me-board and show your solution.

25. Exercise 1 (Pair Activity) Find the sum or difference. 0.23 + 0.72 = 0.002 + 0.234 + 0.3141 = 0.4213 + 0.031 + 2.1122 = 0.0925 – 0.033 = 0.5571 – 0.1032 = 0.95 0.5501 2.5645 0.0595 0.4539

26. Exercise 2 (Show-Me-Board) 0.234 + 0.503 0.737

27. Exercise 2 (Show-Me-Board) 0.3234 + 0.23___ 0.5534

28. Exercise 2 (Show-Me-Board) 0.2039 - 0.0237 0.1802

29. Exercise 2 (Show-Me-Board) 8.2648 - 2.1435 6.1213

30. Apply the Skill (Group) Form 5 groups Do the task for 5 – 7 minutes Group reporting follows

31. Summing Up To add decimals – Arrange the addends in column by place values. Add as whole numbers. Put the decimal point under the column of decimal points.

32. Summing Up To subtract decimals – Arrange the minuend and the subtrahend in column by place values. Fill the empty place values with zeros. Subtract as whole numbers Put the decimal point under the column of decimal points.

33. Test Your Skill Write the decimals in columns then perform the indicated operation.

34. Test Your Skill 0.31 + 0.42 + 0.16 = N 0.13 + 0.0002 + 0.1002 = N 161.4676 – 20.1035 = N 16.021 decreased by 13.9452 is __. Take away 2.3145 from 12.6276

35. Test Your Skill (Answer Key) 0.31 + 0.42 + 0.16 = 0.89 0.13 + 0.0002 + 0.1002 = 0.2304 161.4676 – 20.1035 = 141.3641 16.021 decreased by 13.9452 is 2.0758 . Take away 2.3145 from 12.6276 is 10.3131

36. Assignment Log on to your Quipper Classroom to answer your Assignment.