Numbers
-4 + -5
-9
Write this correctly in algebra:
7 times a
7a
What is 3/4 as a decimal?
0.75
When you see the following expression, what is the big number called and what is the little number on top of it called?
24
Big number - base number
little number - exponent or power
What does BIDMAS stand for?
Brackets, Indices, Multiplication & Division, Addition & Subtraction
62
Evaluate x2 - 4x if x = -3
21
Round this number to 2 d.p. (decimal places):
13.486245
13.49
In algebra, what is the number before a variable called?
Coefficient
What are like terms?
Like terms are terms that have the same variables and similar variables have the same power.
Write the following in index form:
2 x 4 x 2 x 7 x 4 x 7 x 5
22 x 42 x 5 x 72
Simplify the following:
3x + 1 - x - 10 + y
2x + y - 9
Solve the following equation: 4x + 3 = -12
Score double if you can show full and correct working out.
x = -15/4
An Australian state formerly known as 'Van Dieman's Land'
Tasmania
Evaluate:
5 x 3 - (42 - (-6) + 22/2)
-18
Mary has y books. Tom has 4 more books than Mary. Cindy has 5 times as many books as Tom. Write down an expression, in terms of y, that can be used to work out the number of books that Cindy has. (Don’t actually calculate the number of books.)
Cindy has 5(y+4) books
The year 1104 was in which century?
12th century
Find 2 whole numbers that square root of 51 lie between.
Which numbers out of the two that the result is closer to?
7 and 8
square root of 51 is closer to 7