6 (4+5) = 6 x 4 = 24
6 x 5 = 30
24 + 30 = 44 ans
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Step-by-step explanation:
Skip-counting, such as reciting 3, 6, 9, 15,..., is one of the earliest introductions to repeated addition and hence to multiplication. This can be illustrated on a number line as shown for 3 × 5 = 15 below.
3 × 5 = 15
On the number line, the fact that 3 + 3 + 3 + 3 + 3 = 5 + 5 + 5 is not so obvious; the previous image shows 5 + 5 + 5, whereas 3 + 3 + 3 + 3 + 3 looks quite different.
Skip-counting is important because it helps children learn their multiplication tables.
Modelling multiplication by area
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