[SOLVED] use double minus one to solve 8+7 write the number sentence

Doubles Minus One
Use your doubles, and subtract one. Use the highest addend.
The given expression is;8+7Now the highest addend is "8".Double the 8 and then minus 1.8+8= 16 Now, 16 - 1 = 15

use double minus one to solve 8+7 write the number sentence

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