Which basic calculation or process in mathematics relates to factors?
1 answer:
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Answer:
52 inches deeper.
Step-by-step explanation:
One way you can solve this is by using subtraction.
1 foot = 12 inches and we already have 20 inches dug. The hole needs to be 72 inches deep so we just subtract 72 by 20 to find out how much more digging they need to do. They need to dig another 52 inches.
Another way to solve this, is by using subtraction and fractions.
They need to dig 6 feet and we already have dug. Now you can subtract. They need to dig
feet to reach the required depth.