![]() ![]() For example, double 9 x 8 to find 18 x 8. Use doubling to extend beyond the 10 x 10 times table grid. ![]() ![]() Ask the student to model and draw several examples of doubling. Take a known fact, such as 4 x 5 = 20, and model it using the array. Large Dotty Array (Material master 6-9) (PDF, 122KB)Īrrays give students a visual representation that can be used to explore multiplication concepts.Can the student suggest a reason beyond “you just need to add a zero”?.Does the student attempt to use skip-counting to work out 6 x 8 or state that they don’t know their six times table?.If Moira knows that 3 x 8 is 24, how can she work out 6 x 8? (If necessary, prompt the student to focus on using the known fact 3 x 8 = 24)Īnswer: 6 x 8 is double 3 x 8 because there are twice as many groups of 8.Īnswer: The answer is 10 times as large because 80 is 10 times as large as 8.Check fast and fluent recall of early multiplication facts such as two times, five times, and ten times tables. ![]()
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