999+99+9+9+9
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To make five nines equal 100, you can use basic mathematical operations. One way to achieve this is by adding the five nines together: 9 + 9 + 9 + 9 + 9 = 45. Then, you can multiply this result by 2: 45 x 2 = 90. Finally, add 10 to 90 to reach 100: 90 + 10 = 100.
1125 in decimal form is simply 1125. Decimal form is the standard number system we use in everyday life, which is based on powers of 10. In this case, 1125 is already in decimal form as it is written in base 10.
7*9 is 63. You can count seven nines or nine sevens, or you can use a calculator.
You would use the number 9 ten times.