Rounding to a required degree of accuracy

Rounding to a required degree of accuracy

Lesson details

Key learning points

  1. In this lesson, we will consider why estimates and rounding might be useful. We will explore rounding 7-digit numbers to the nearest multiple of 100,000 with varying degrees of accuracy.

Licence

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5 Questions

Q1.
300 tens is equal to 3 thousands
False
Correct answer: True
Q2.
7 460 400 is one hundred thousand larger than 7 450 400
Correct answer: False
True
Q3.
Any number with a 2 in the millions place and a 6 in the hundred thousands place will be greater than 2 580 900
False
Correct answer: True
Q4.
Which expression is correct?
1,000, 522 <100,522
3,684,526 < 2,684,526
52,000 > 72,999
Correct answer: 8,476,359 > 8,476,259
Q5.
Which expression is incorrect?
1,000, 000 > 100,009
Correct answer: 3,268,741 < 3,266,742
9,998,231 > 9,99, 231
Three million = 3,000,000

5 Questions

Q1.
Round the number 8,478,365 to the nearest 100,000
8,400,000
8,470,000
8,480,000
Correct answer: 8,500,000
Q2.
Round the number 1,962,354 to the nearest 100,000.
1,000,000
1,800,000
1,900,000
Correct answer: 2,000,000
Q3.
Round the number 9,571,354 to the nearest 10,000.
9,500,000
Correct answer: 9,570,000
9,580,000
9,600,000
Q4.
Round the number 4,838,646 to the nearest 10,000.
4,800,000
4,830,000
Correct answer: 4,840,000
4,900,000
Q5.
Round the number 6,232,119 to the nearest 10,000.
6,200,000
Correct answer: 6,230,000
6,240,000
6,300,000

Lesson appears in

UnitMaths / Integers & Decimals