Adding/Subtracting Integers
6+-4
2
LCM of 5 and 6
30
-3 x 2
What is -6?
5 x 5 x 5 x 5 in index form
54
3 + 6 x 3
21
-3+2
-1
LCM of 3 and 8
24
3 x -6
What is -18?
34 expanded
3 x 3 x 3 x 3
5 x 4 + (4-3)
21
-5+ -6
-11
LCM of 15 and 5
15
-7 x -7
What is 49?
4 x 4 x 6 x 6 x 4 x 6 index form
43 x 63
3 x (5-7)
-6
Add the integers
-4 - 5
-9
HCF of 30 and 24
6
-5 / -5
+1
expand 42 x 53
4 x 4 x 5 x 5 x 5
-2 + 42 / 2
+6
-25 - -5
-20
HCF of 48 and 56
8
(-28 / 3) x 2
-16
Expand and evaluate 34
81
-2 x (3 + 4) - 16 /22
-2 x 7 - 16/4
-14 - 4
= -18