In 43, what is the base?
4
Simplify 22×23
25
Simplify (32)2
34
Calculate 82
64
Expand 34 as repeated multiplication.
3x3x3x3
Simplify 53×52
55
Simplify (23)2
26
Calculate −7+12
5
Write 6×6×6×6 using index notation.
64
Simplify 72×74
76
Simplify (52)3
56
Find the HCF of 12 and 18.
6
True or false: 34=3×4
False
Simplify 43×42×4
46
Simplify (103)4
1012
A triangle has angles 48∘, 67∘ and x∘. Find x.
65∘
Explain the mistake: 23=6
2x2x2 = 8
Simplify 32×34×33
39
Simplify ((22)3)2
212
A quadrilateral has angles 90∘,85∘,110∘ and x∘. Find x.
75∘
Write 2×2×2×5×5 using index notation.
23×52
Simplify 62×63×64
69
Simplify (73)4
712
Two angles in a triangle are 38∘ and 79∘. Find the third angle.
63∘
Which is greater: 25 or 52? Show how you know.
25=32, 52=25, so 25 is greater
Find the missing index: 34×3?=311
7, because 4+7=11
Find the missing index: (53)?=512
4, because 3×4=12
Three angles in a quadrilateral are 72∘,108∘ and 95∘. Find the fourth angle.
85∘