mock revision questions accurately
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How to -/+ unlike fractions - n
Ans✔
- a find the common denominator and multiply.
1/2(4)+3/8-> 4/8+3/8= 7/8
- b add the numerators and reduce.
- Just divide both n&d by the number
Qs
How to find the common denominator - n
Ans✔
The common denominator is the lcm of the given fractions.
- 3/4,1/5
4,8,12,16,20
1,2,3,4,5
3/4(5),1/5(4)
=15/20,4/20
Multiply both fractions by their LCM
Qs
The square root of a number is always... - n
Ans✔
positive
, Qs
Find Dimensions means... - n
Ans✔
Find the length and width
Qs
Ordered pair - n
Ans✔
Any air of numbers for which the order is important. (x,y)
Qs
Divisibility Rules - n
Ans✔
2- When the number is even
3- the sum of the digits is divisible by 3
5- limit digit is 0 or 5
9- sum is divisible by 9
10- ends in 0
6- odd numbers and 2
Qs
Prime factorization - n
Ans✔
The numbers multiplied together to get the original to get the original number.
Qs
Reducing Fractions - n
Ans✔
Divide the numerator and denominator by their gcm.
30/75