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Reasoned Rounding

Four strategy dice games to consolidate pupils' understanding of rounding.

Rough Rectangle

Age 11 to 14 Short Challenge Level:

Answer: 24.75 cm$^2$

$5.5\le$ length ("6 cm") $\lt 6.5$


$4.5\leq$ width ("5 cm") $\lt 5.5$

$\therefore$ smallest possible area is $5.5\times4.5=24.75$ cm$^2$


You can find more short problems, arranged by curriculum topic, in our short problems collection.