Multiplication
2x60
120
50/5
10
100+1300
1400
20-5
15
10 to the 3rd power
1000
40x80
3200
60/2
30
620+300
920
550-20
530
10 to the 4th power
10,000
100x6
600
188/4
47
800+300
1100
340-80
260
10 to the 2nd power
100
70x20
1400
80/4
20
460+300
160
780-90
690
10 to the 1st
10
7x90
630
90/6
15
200+60
260
90-50
40
10 to the 5th power
100,000