Answer:
Memorize all the squares, and the corresponding square roots, up to 20. So if you did this you would be able to write the answer straight down as being
18
√324
324=2(2)×3(4)
The parentheses are roots Numbers.
√324=√2(2)×√3(4)=2(1)×3(2)=2×9=18
Step-by-step explanation:
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