1) 22 × 23 = 22+3 = 25 = 32
2) 315 : 311 = 315-11 = 34 = 81
3) 59 × 53 : 510 = 59+3-10 = 52 = 25
4) 1111 : 1110 × 11 = 1111-10+1 = 112 = 121
5) ($$\frac{1}{7}$$ )17 : ($$\frac{1}{7}$$ )16 × $$\frac{1}{7}$$ = ($$\frac{1}{7}$$ )17-16+1 = ($$\frac{1}{7}$$ )2 = $$\frac{1}{49}$$
6) $$\frac{7^{15} : 7^{12}}{7^2}$$ = $$\frac{7^{15-12}}{7^2}$$ = $$\frac{7^{3}}{7^2}$$ = 73-2 = 71 = 7
7) $$\frac{0{,}2^{14} \cdot 0{,}2^{9}}{0{,}2^{15} \cdot 0{,}2^{6}}$$ = $$\frac{0{,}2^{14+9}}{0{,}2^{15+6}}$$ = $$\frac{0{,}2^{23}}{0{,}2^{21}}$$ = 0{,}223-21 = 0{,}22 = 0{,}04
8) 32 × 81 = 32 × 34 = 32+4 = 36 = 729
9) 256 : 25 × 22 = 28 : 25 × 22 = 28-5+2 = 25 = 32
10) $$\frac{6^7}{6^3 \cdot 216}$$ = $$\frac{6^7}{6^3 \cdot 6^3}$$ = $$\frac{6^7}{6^6}$$ = 67-6 = 61 = 6