About This Lesson
Drag the cross to reveal sections of the number square. Revealing one number, ask students to work out the remaining four. Discuss their strategies with the class.
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Drag the cross to reveal sections of the number square. Revealing one number, ask students to work out the remaining four. Discuss their strategies with the class.
Brilliant way of checking understanding of 100 square with 1 more/less and 10 more/less - love this!