&GUIDED QUESTIONS

MATH VOCABULARY

DAY 53

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3/6/13 Guided Question 1063/6/13 Math Vocabulary 105

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3/6/13 105Math Vocabulary

triangle based pyramid – 4 faces, 6 edges, and

square based pyramid – 5 faces, 8 edges, and

5 vertices.

4 vertices.

NEXT,INDEX

Sstandard form 5sum 5

symbol 57

skip counting 25square units 37

square 73sphere 101square based pyramid 105

69two dimensional63third47triple

tenths 3

T

71triangle79trapezoid89three-dimensional

105triangle based pyramid

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3/6/13 106Guided Question

Question of the Day:

There are 24 hours in a day and 365 days ina year. Which is the best estimate of thenumber of hours in a year?

A 12,000 hours

B 8,000 hours

C 390 hours

D 380 hours

3/6/13 106Guided QuestionThere are 24 hours in a day and 365 days ina year. Which is the best estimate of thenumber 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 needto round each number to its highest place value. Thehighest place value for 24 is the TENS PLACE, so 24rounds to 20. The highest place value for 365 is the

You need to MULTIPLY (x) 400 and 20. Ignoreall the zeros and just multiply (x) 4 and 2. 4 x 2 = 8.Then count all the zeros in the problem. There are 3

365 400zeros. Put 3 zeros on the end of 8 to make it 8,000.8,000 is your answer.

24 20

HUNDREDS PLACE, so 365 rounds to 400.

The Answer is

8,000

400 x 20 = think 4 x 2 = 8 so 4 0 0 x 2 0 = 8, 0 0 0

REMEMBERIf you fall behind

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