1. Round these numbers to the nearest hundred. a) 65


b) 71


f) 155 k) 346 p) 2806


g) 213 l) 350 q) 4216


c) 80


h) 179 m) 677 r) 8935


d) 126 i) 262 n) 1360 s) 12578


2. The cinema in town holds a maximum of 500 people.


a) Estimate how many people went to the cinema this week by rounding the number of tickets sold for each night to the nearest hundred and adding them. Day


Monday Tuesday


Wednesday Thursday Friday


Saturday Sunday


Number of Tickets Sold 172 243 312 361 445 476 413


b) Exactly how many people went to the cinema in the town this week?


3. Estimate the answers to these by rounding the numbers to the nearest hundred and then working them out.


a) 570 + 310 d) 830 – 288


b) 124 + 780 e) 487 – 190


c) 1352 + 1679 f) 5299 – 1430


4. Maura’s mum is buying a few new household appliances. She needs a rough estimate of how much money she will need. Round these prices to the nearest hundred and add them to give her that estimate.


e) 142 j) 420 o) 1685 t) 35121


16


Place Value


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