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Think of any number Add 7 to it subtract 2 Subtract your original number multiply this by 4 and subtract 2 You will always get 18 Why?
Wiki User
∙ 14y ago
Call the unknown number n. Then, from the problem statement, {4[(n + 7 - 2) - n]} - 2 = 18. This is always true because [(n + 7 - 2) - n] is simply 5.
Wiki User
∙ 14y ago
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What combination of numbers always results in an odd number?
Multiply two odd numbers Add an even and an odd Subtract an odd and an even
When can you add or subtract mixed numbers?
You can always do that.
How do you add and subtract mixed numbers with unlike denominators?
just change the fration with the smallest denominator and add or subtract the way you always do.
When adding a positive number to a negative number why do you always get a positive number?
-5+-3 = -8 ++ Add -- Add +- Subtract -+ Subtract
Does fewer always tell to subtract in math?
Yes.Yes.Yes.Yes.
What equation always equals 2?
1. Pick a number 2. Multiply by two 3. Add 12 4. Subtract 8 5. Halve it (Divide by 2) 6. Subtract original number ... HOPE THIS HELPSSS <3333
What happens when you add subtract or multiply the digits in the number 42?
the result is always even
What combination of numbers always results in an odd number?
Multiply two odd numbers Add an even and an odd Subtract an odd and an even
What are some mathematical tricks?
Pick any number. Multiply by 6. Add 13. Subtract 7. Divide 3. Divide 2. Then subtract by the original number you chose. Your result will always be 1. Tell a friend to mentaly multiply their age by 2. Tell them to add 14 then divide 2. Ask your friend what number they currently have. Now, you mentally subtract 7 from the number they tell you, then you'll know your friend's age.
When you subtract integers do you always move left on a number line?
No.If you subtract a positive number, you move to the left.If you subtract a negative number, you move to the right.
Iwhat do you multiply to get your winnings on a 5 dollar horse win ticket?
Prices posted after a race are based on a $2 bet. So, subtract 2 from the posted amount, multiply the remainder by 2.5 (because 5 divided by 2 is 2.5), and then add in your $5 bet. For example, if a horse paid $8.00 to win, subtract the original $2 bet to get $6.00. (Your original bet is always included in the payout). Multiply $6 times 2.5 to get $15. Add in your $5 bet and you will collect $20 when you cash your ticket.
When can you add or subtract mixed numbers?
You can always do that.
How do you add and subtract mixed numbers with unlike denominators?
just change the fration with the smallest denominator and add or subtract the way you always do.
When adding a positive number to a negative number why do you always get a positive number?
-5+-3 = -8 ++ Add -- Add +- Subtract -+ Subtract
When you subtract two even numbers what will your answer be?
a even number always
Does fewer always tell to subtract in math?
Yes.Yes.Yes.Yes.
How do you pick a number any number and i will tell you what you end up with?
I like this one.... think of a number multiply by 2 add 12 subtract 4 divide by 2 subtract the number you thought of and the answer is 4 it always works its a mathematical certainty once you have the number 4 you can add subtract etc to your hearts content and make any new number provided you remember the answer yourself.
