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Anonymous
64
640
640/4 = 160
640 ÷ 8 = 80.
64 times (640 ÷ 10 = 64).
The place value of 4 is TENS and so its value is 4 lots of ten or forty.
640 grams = 22.57ounces.
There are 640 acres in a section.
640 ounces = 40 pounds
Depens how wide the 640 miles are.
640/24 = 26.67 days