zadanie 6
Potęgowanie potęgi, oblicz.
zadanie 7
Oblicz
zadanie 8
Zamień podane procenty na ułamki zwykłe
zad. 8
20%= 20·1/100=20/100=2/10=1/5
30%=30·1/100=30/100=3/10
17 1/2 %=17,5·1/100=175/1000=7/40
56 2/3%=320/3·1/100= 320/300=32/30
75%=75·1/100= 75/100=3/4
85%=85·1/100=85/100=17/20
120%= 120·1/100=120/100=12/10=1 2/10= 1 1/5
154%=154·1/100=154/100=77/50= 1 27/50
zad.6
2²·2³=2²+³=2⁵
4²·4²=4²+²=4⁴
3⁷·3-⁴=3⁷-⁴=3³
9⁸·9¹⁰=9⁸+¹⁰=9¹⁸
5¹⁰:5⁷=5¹⁰-⁷=5³
7-⁴:7-⁶=7-⁴-(-⁶)=7-⁴+⁶=7²
-2⁹:-2⁶=-2⁹-⁶=-2³
-6⁸:-6-⁶=-6⁸+⁶=-6¹⁴
zad.7
9²+7²=81+49=150
12²-11²=144-121=23
5³+4³=125+64=189
9³-6³= 729-216=513
3⁴+2⁴=81+64=145
5⁴-4⁴=625-256=369
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zad. 8
20%= 20·1/100=20/100=2/10=1/5
30%=30·1/100=30/100=3/10
17 1/2 %=17,5·1/100=175/1000=7/40
56 2/3%=320/3·1/100= 320/300=32/30
75%=75·1/100= 75/100=3/4
85%=85·1/100=85/100=17/20
120%= 120·1/100=120/100=12/10=1 2/10= 1 1/5
154%=154·1/100=154/100=77/50= 1 27/50
zad.6
2²·2³=2²+³=2⁵
4²·4²=4²+²=4⁴
3⁷·3-⁴=3⁷-⁴=3³
9⁸·9¹⁰=9⁸+¹⁰=9¹⁸
5¹⁰:5⁷=5¹⁰-⁷=5³
7-⁴:7-⁶=7-⁴-(-⁶)=7-⁴+⁶=7²
-2⁹:-2⁶=-2⁹-⁶=-2³
-6⁸:-6-⁶=-6⁸+⁶=-6¹⁴
zad.7
9²+7²=81+49=150
12²-11²=144-121=23
5³+4³=125+64=189
9³-6³= 729-216=513
3⁴+2⁴=81+64=145
5⁴-4⁴=625-256=369