Let the number be 'x'
Half of 'x' is written as x/2
To take '7' away we write
''(x/2) - 7 ' Note the use of brackets, because if written as 'x/2 - 7 ' are we subtracting '7' from '2' only. So the brackets give clarity that the '7' is being subtracted from the term inside the brackets, which is 'half of 'x''.
write the number that is 100 less
53
The only number set that fits these criteria are, 90, 91, 92, 93, 94, 95, 96.
5.
Start from the left end. Use the first digit only. If it is bigger than 7, then you can take 1 seven from it, so start your answer with "1" and take that seven away. That leaves you with a first number less than seven. Always, if the first number is less than seven then use the first two numbers instead. You now have the first number of your answer, and the what is left of your original number to deal with. Do exactly the same again, (if you can take 2 sevens, write 2 and take off 14, or 6 sevens write 6 and take off 42 etc) tagging the next stage answer to the right of your first stage answer. Keep going.
write the number that is 100 less
x=101-7x=94
25x-13=37
The real answer is n-7
53
n-n
seven seven
Question: 7 less n Answer: 7 - n
You write two numbers as a fraction, making sure that the top number is less than the bottom number.You write two numbers as a fraction, making sure that the top number is less than the bottom number.You write two numbers as a fraction, making sure that the top number is less than the bottom number.You write two numbers as a fraction, making sure that the top number is less than the bottom number.
Seven and a half (:
yes
The only number set that fits these criteria are, 90, 91, 92, 93, 94, 95, 96.