Zad 1 .

( -3 ) - ( -7 ) =

8 - ( -4 ) =

( -10 ) - 8 =

7 - 15 =

b . ( -3 ) - 10 =

( -12 ) - ( -6 ) =

( -9 ) - ( -3 ) =

( -8 ) - 1 =

c . 11 - ( - 11 ) =

( - 25 ) - ( - 25 ) =

( -34 ) - 50 =

( - 42 ) - 40 =

d . ( - 40 ) - ( - 20 ) =

( - 120 ) - 70 =

520 - ( - 20 ) =

( - 110 ) - ( -200 ) =

zad 2 .

Zamień odejmowanie na dodawanie liczby przeciwnej i oblicz .

a . ( -6 ) - 4 =
( -5 ) - 9 =
( - 11 ) - 2 =
7 - 10 =

b . 3 - ( -5 ) =
( -1 ) - ( -4 ) =
( -9 ) - ( -3 ) =
13 - ( -7 ) =

zad 3 .

Uzupełnij .

a . _______ - 999 = -1001
b . ( -2000 ) - ______ = 3000
c . ( -1 ) - ______ = -999
d . ______ - ( - 999 ) = 2000

2

Odpowiedzi

2010-03-08T18:29:07+01:00
Zaadnie1
( -3 ) - ( -7 ) =-3+7=3
8 - ( -4 ) =8+4=12
( -10 ) - 8 =-10-8=-18
7 - 15 =-8
b . ( -3 ) - 10 =-13
( -12 ) - ( -6 ) =-12+6=-6
( -9 ) - ( -3 ) =-9+3=-6
( -8 ) - 1 =-9
c . 11 - ( - 11 ) =11+11=22
( - 25 ) - ( - 25 ) =-25+25=0
( -34 ) - 50 =-84
( - 42 ) - 40 =-82
d . ( - 40 ) - ( - 20 ) =-40+20=-20
( - 120 ) - 70 =-190
520 - ( - 20 ) =520+20=540
( - 110 ) - ( -200 ) = -110+200=90
Zadanie2
a . ( -6 ) - 4 = 6-(-4)=6+4=10
( -5 ) - 9 =5-(-9)=5+9=14
( - 11 ) - 2 =11-(-2)=11+2=13
7 - 10 =-7+10=3
b . 3 - ( -5 ) =-3-5=-8
( -1 ) - ( -4 ) =1-4=-3
( -9 ) - ( -3 ) =9-3=6
13 - ( -7 ) =-13-7=-20
Zadanie 3
a . -2 - 999 = -1001
b . ( -2000 ) - (-5000)= 3000
c . ( -1 ) - 998= -999
d . 1001 - ( - 999 ) = 2000
2010-03-08T18:31:04+01:00
Zad.1
1. -3 + 7 = 4
2. 8 + 4 = 12
3. -10 -8 = -18
4. 7 - 15 = -8
5. -3 -10 = -13
6. -12 + 6 = 6
7. -9 + 3 = -6
8. -8 -1 = -9
9. 11 + 11 = 22
10. -25 + 25 = 0
11. -34 -50 = -84
12.- 42 -40 = -82
13. -40 + 20 = -20
14. -120 -70 = -190
15. 520 + 20 = 540
16. -110 + 200 = 90

Zad.2
1. 6 + 4 = 10
2. 5 + 9 = 14
3. 11 + 2 = 13
4. 7 + 10 = 17
5. 3 + 5 = 8
6. 1 + 4 = 5
7. 9 + 3 = 12
8. 13 + 7 = 20

Zad.3
a) 2000 - 999 = 1001
b) (-2000) -(-5000) = 3000
c) (-1) -998 = -999
d) 1001 -(-999) = 2000

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