I rounded to the nearest ten thousand and worked out that all of the numbers below will round to 420 000. The teacher marked it as incorrect as she rounded the numbers to the nearest thousand. By her textbook definition alone surely I was supposed to round to the nearest 10, 000? The number 420,000 has four zeros? Or am I wrong? Thanks for your time...

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.2: Arithmetic Sequences
Problem 54E
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Question 8b)

I rounded to the nearest ten thousand and worked out that all of the numbers below will round to 420 000. The teacher marked it as incorrect as she rounded the numbers to the nearest thousand. By her textbook definition alone surely I was supposed to round to the nearest 10, 000?

The number 420,000 has four zeros? Or am I wrong?

Thanks for your time...

8. Circle the correct answer(s) in each case:
a) Circle all the numbers below, which will round to 11 500.
11499
11 551
11 529
11 449
11451
b) Circle all the numbers below, which will round to 420 000.
419 499
420 449
420 511
419 557
420 499
c) Circle all the numbers below, which will round to 2 300 000.
2349 001
2249 999
2 350 002
2259 001
2 309 999
Transcribed Image Text:8. Circle the correct answer(s) in each case: a) Circle all the numbers below, which will round to 11 500. 11499 11 551 11 529 11 449 11451 b) Circle all the numbers below, which will round to 420 000. 419 499 420 449 420 511 419 557 420 499 c) Circle all the numbers below, which will round to 2 300 000. 2349 001 2249 999 2 350 002 2259 001 2 309 999
1.7.1.4) Rounding to the nearest 10 000 means that the last four digits (thousands,
hundreds, tens and units) will turn into a zeros.
Highlight or mark the ten thousands digit. Look at the hundreds digit to the right of it
to determine whether rounding up or down is needed. The numbers 0; 1; 2; 3 and 4 are
rounded down. The numbers 5; 6; 7; 8 and 9 are rounded up to the next number.
Example
Round 36 945 to the nearest ten thousand.
Highlight the thousands digit and look at the number to its right (hundreds).
36 945
The thousands digit is a 6 and the thousands digit should then be rounded up changing
the 36 945 to 40 000.
Answer = 40 000
Transcribed Image Text:1.7.1.4) Rounding to the nearest 10 000 means that the last four digits (thousands, hundreds, tens and units) will turn into a zeros. Highlight or mark the ten thousands digit. Look at the hundreds digit to the right of it to determine whether rounding up or down is needed. The numbers 0; 1; 2; 3 and 4 are rounded down. The numbers 5; 6; 7; 8 and 9 are rounded up to the next number. Example Round 36 945 to the nearest ten thousand. Highlight the thousands digit and look at the number to its right (hundreds). 36 945 The thousands digit is a 6 and the thousands digit should then be rounded up changing the 36 945 to 40 000. Answer = 40 000
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