Arithmetic, Number Facts and Sequences
148 ÷ 0.1
1480
Solve 2x - 5 = 11
8
A wire 11 cm long has a mass of 110g. What is the mass of 7cm of this wire?
70g
Solve 7 = x/2
14
The next term of this sequence 1, 3, 6, 10, 15, ...
21
Write 46000 in scientific notation (standard form)
4.6 x 10^4
Solve this set of simultaneous equations
2x + y = -3
x - y = -3
x=0
y=3
Nth term of 5, 9, 13, 17, ...
4n + 1
Solve the following simultaneous equations
3x + 2y = 19
x + 8y = 21
x= 5, y=2
Factorise x^2 - 9
(x+3)(x-3)
Nth term for -5, -1, 3, 7, ...
4n - 9
If the scale of a map is 1:10 000, what will be the length on this map of a road which is 5km long?
50cm
Solve the following simultaneous equations
x - y = -1
2x - y = 0
x=1, y=2
Expand the following: