15 x 10 = 150
15 x 10 = 150
15 x 1 = 15 21 x 15 = ?
150 x 2 = 300
300 + 15 = 315
Total 315
To solve this I first looked for the maths. The maths told me I needed to make 21 groups of 15. To find the answer I used my 10x. The numbers I had to look for were 21 and 15. We had to solve 21 x 15.
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