Unit 7 – Whole numbers and fractions
3 We can also round numbers to the nearest 100. Is 455 closer to 400 or to 500? Explain how you know.
400 410 420 430 440 450 460 470 480 490 500
455 rounds up to 500 to the nearest hundred.
Round 176 to the nearest 100. There are
1
steps to 100 and there are
steps to 200,
than
.
so 176 is closer to
176 rounds to
to the nearest hundred.
Round these numbers as shown.
1
Number Round to the nearest 10 Round to the nearest 100 (a) 85 (b) 350 (c) 312
Look at these numbers.
2
Which of the numbers round to: (a) 250 to the nearest ten? (b) 200 to the nearest hundred? (c) 300 to the nearest hundred?
99
9781380050687__text.indb 99
03/05/2022 10:19
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