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GUIDED QUESTIONS

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MATH VOCABULARY

&

GUIDED QUESTIONS

DAY 53

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TABLE OF CONTENTS

Date

Page

Math Vocabulary

3/6/13

105

Guided Question

3/6/13

106

NEXT,

MATH VOCABULARY

105

Math Vocabulary

- square based pyramid – 5faces, 8edges, and

- 5vertices.

triangle based pyramid – 4 faces, 6 edges, and

4 vertices.

NEXT,

INDEX

S

standard form

5

sum

5

skip counting

25

square units

37

symbol

57

square

73

sphere

101

square based pyramid

105

T

tenths

3

triple

47

third

63

two dimensional

69

triangle

71

trapezoid

79

three-dimensional

89

triangle based pyramid

105

NEXT,

GUIDED QUESTION

106

Guided Question

There are 24 hours in a day and 365 days in

a year. Which is the best estimate of the

number of hours in a year?

A 12,000 hours

B 8,000 hours

C 390 hours

D 380 hours

106

Guided Question

There are 24 hours in a day and 365 days in

a year. Which is the best estimate of the

number of hours in a year?

A 12,000 hours

B 8,000 hours

C 390 hours

D 380 hours

- This is an ESTIMATION (ROUNDING) question. You need

- to round each number to its highest place value. The

- highest place value for 24 is the TENS PLACE, so 24

- rounds to 20. The highest place value for 365 is the

- HUNDREDS PLACE, so 365 rounds to 400.

- You need to MULTIPLY (x) 400 and 20. Ignore

- all the zeros and just multiply (x) 4 and 2. 4 x 2 = 8.

- Then count all the zeros in the problem. There are 3

- zeros. Put 3 zeros on the end of 8 to make it 8,000.

- 8,000 is your answer.

365

400

24

20

400 x 20 = think 4 x 2 = 8

so 4 00 x 2 0 = 8, 000

The Answer is

8,000

If you fall behind use my WEB PAGE to fill in the missing parts. We will take a JOURNAL Quiz every Friday, for a grade.