Examples
Round 978 to the nearest 100.
Step 1. Decide between which two multiples of 100 the number lies. 978 lies between 900 and 1000.
Step 2. Look at the digit to the right of the place you are rounding to. 978
You are rounding to the hundreds place. So look at the tens place.
Step 3. Since 7 > 5, round up.
978 is rounded up 1000.
Exercise
Question: Round to the nearest 10.
(a) 23
Answer: 20
(b) 85
Answer: 90
(c) 53
Answer: 50
(d) 48
Answer: 50
(e) 21
Answer: 20
(f) 51
Answer: 50
(g) 96
Answer: 100
(h) 37
Answer: 40
(i) 74
Answer: 70
(j) 19
Answer: 20
(k) 62
Answer: 60
(l) 34
Answer: 30
Question: Round these numbers to the nearest 100.
(a) 139
Answer: 100
(b) 902
Answer: 900
(c) 362
Answer: 400
(d) 737
Answer: 700
(e) 591
Answer: 600
(f) 72
Answer: 100
(g) 449
Answer: 400
(h) 255
Answer: 300
(i) 846
Answer: 800
(j) 488
Answer: 500
(k) 612
Answer: 600
(l) 958
Answer: 1000
Very nice!
Very good!