Lesson 32

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# Lesson 32 - PowerPoint PPT Presentation

Lesson 32. Expanded notation. Notes. Mental Math. Links. Activity. Proficiency. Homework. Fact Test. Mental Math. Count up and down by 3’s between 3 and 36. 4 x 75 279 + 350 250 - 199 \$15 + \$7.75 Double \$1.50 800/40 4 x 12, ÷ 6, x 8, - 4, ÷ 6, x 3, ÷ 2.

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## Lesson 32

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1. Lesson 32 Expanded notation

2. Notes Mental Math Links Activity Proficiency Homework Fact Test

3. Mental Math • Count up and down by 3’s between 3 and 36. • 4 x 75 279 + 350 • 250 - 199 \$15 + \$7.75 • Double \$1.50 800/40 • 4 x 12, ÷ 6, x 8, - 4, ÷ 6, x 3, ÷ 2

4. When we write a number in expanded notation, We write each nonzero digit times its place Value. Expanded Notation Write 250 in expanded notation: (2 x 100) + (5 x 10)

5. AM: Runs from midnight to just before noon PM: runs from noon to just before midnight We can use the Later-Earlier Difference Pattern to solve elapsed time problems. Elapsed Time

6. Jason started the marathon at 7:15 a.m. He Finished at 10:10 a.m. How long did it take Jason to finish the race? Later 10:10 am - earlier - 7:15 am 10:10 - 7:15

7. http://www.math.com/school/subject1/lessons/S1U4L6GL.html http://www.kidsmath.com/e_int.html

8. A 1 ½ + ¾ = 2 ¼ 20 ¼ - 2 ¼ = 18 inches

9. A 1 ½ + ¾ = 2 ¼ 20 ¼ - 2 ¼ = 18 inches

10. Activity A dot cube has six faces. Where two faces meet, there is an edge. How many edges does a dot cube have?

11. Lesson 59 Practice A-F Complete #’s 1-10 Fact test G

12. 24 17 of 24 :00 0 Write in expanded notation:205 • (200) + (5) • (2 x 100) + (5 x 10) • (2 x 100) x (2 x 1) • (2 x 100) + (2 x 1) • None of the above

13. 24 18 of 24 :00 0 Write in expanded notation:8050 • (8 x 1000) + (5 x 100) • (8 x 1000) + (5 x 10) • (8 x 100) + (5 x 10) • (8 + 1000) x (5 x 10) • None of the above

14. 24 17 of 24 :00 0 Write in standard form:(7 x 100) + (5 x 1) • 705 • 750 • 7005 • 751 • None of the above

15. 24 17 of 24 :00 0 What time is 3 ½ hours after 11:50 P.M.? • 2:20 AM • 3:40 AM • 2:40 AM • 3:20 AM • None of the above