Odpowiedź:
Zadanie 6
a)
[tex]11 \times ( - 3) = - 33 \\ 11 \times ( - 9) = - 99 \\ 0 \times ( - 77) = 0[/tex]
b)
[tex]2 \times ( - 16) = - 32 \\ 30 \times 2 = 60 \\ ( - 11) \times ( - 5) = 55[/tex]
c)
[tex]( - 6) \times ( - 15) = 90 \\ 65 \times ( - 1) = - 65 \\ 101 \times ( - 7) = - 707 \\ [/tex]
Zadanie 7
a)
[tex]( - 1) \times ( - 1) \times ( - 1) = - 1[/tex]
b)
[tex]( - 1) \times ( - 4) \times ( - 3) = - 12[/tex]
c)
[tex]3 \times ( - 12) \times ( - 1) = 36[/tex]
d)
[tex]( - 1) \times 4 \times ( - 4) \times 2 = 32[/tex]
e)
[tex]( - 1) \times ( - 10) \times ( - 3) \times ( - 2) = 60[/tex]
f)
[tex]( - 1) \times ( - 5) \times ( - 10) \times 5 = - 250[/tex]
Zadanie 8
a)
[tex]4 \times 3 = 12 \\ 4 \times ( - 3) = - 12 \\ 4 \times 7 = 28 \\ 4 \times ( - 7) = - 28[/tex]
[tex]( - 4) \times 5 = - 20 \\ ( - 4) \times ( - 5) = 20 \\ ( - 4) \times 8 = - 32 \\ ( - 4) \times ( - 8) = 32[/tex]
b)
[tex]20 \div 5 = 4 \\ ( - 20) \div5 = - 4 \\ ( - 20) \div ( - 5) = 4 \\ 20 \div ( - 5) = - 4[/tex]
Zadanie 9
a)
[tex]( - 42) \div 7 = - 6 \\ 64 \div ( - 8) = - 8 \\ 76 \div ( - 2) = - 38 \\ ( - 46) \div ( - 2) = 23[/tex]
b)
[tex]24 \div ( - 3) = - 8 \\ ( - 54) \div ( - 6) = 9 \\ ( - 48) \div ( - 8) = 6 \\ ( - 45) \div 15 = - 3[/tex]
c)
[tex]( - 48) \div ( - 6) = 8 \\ 56 \div ( - 8) = - 7 \\ ( - 63) \div 9 = - 7 \\ ( - 88) \div ( - 22) = 4[/tex]
Zadanie 10
a)
[tex]36 \div ( - 9) = - 4 \\ (- 26) \div ( - 2) = 13[/tex]
b)
[tex]57 \div ( - 1) = - 57 \\ 80 \div ( - 2) = - 40[/tex]
c)
[tex] ( - 48) \div 3 = - 16 \\ ( - 34) \div ( - 2) = 17[/tex]
