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Photo courtesy of (@flickr. com) - granted under creative commons licence - janitors Photo

Photo courtesy of (@flickr. com) - granted under creative commons licence - janitors Photo courtesy of (@flickr. com) - granted under creative commons licence - ruthanddave Photo courtesy of (@flickr. com) - granted under creative commons licence - 48625620@N 00 Photo courtesy of (@flickr. com) - granted under creative commons licence - iliahi Photo courtesy of (@flickr. com) - granted under creative commons licence - v 1 ctor Photo courtesy of (@flickr. com) - granted under creative commons licence - wlscience Photo courtesy of (@flickr. com) - granted under creative commons licence - dptr Photo courtesy of (@flickr. com) - granted under creative commons licence - moniqca

Photo courtesy of (@flickr. com) - granted under creative commons licence - moniqca Photo

Photo courtesy of (@flickr. com) - granted under creative commons licence - moniqca Photo courtesy of (@flickr. com) - granted under creative commons licence - ruthanddave Photo courtesy of (@flickr. com) - granted under creative commons licence - wlscience Photo courtesy of (@flickr. com) - granted under creative commons licence - iliahi

Photo courtesy of (@flickr. com) - granted under creative commons licence - janitors Photo

Photo courtesy of (@flickr. com) - granted under creative commons licence - janitors Photo courtesy of (@flickr. com) - granted under creative commons licence - 48625620@N 00 A circular scale is just like a number line that has been curved round.

Find zero Look at the numbers Do the numbers go up in ones? This

Find zero Look at the numbers Do the numbers go up in ones? This one is straightforward because all the lines are numbered. How much water is in the bucket?

The scale goes up in ½ litres, we have tested it by counting up.

The scale goes up in ½ litres, we have tested it by counting up. How much water is in the bucket?

0 g 90 g 10 g 80 g 20 g 70 g 30 g

0 g 90 g 10 g 80 g 20 g 70 g 30 g 60 g 50 g 40 g

0 g 700 g 0 g 100 g 200 g 600 g 500 g

0 g 700 g 0 g 100 g 200 g 600 g 500 g 300 g 400 g 700 g 100 g 200 g 600 g 500 g 300 g 400 g