October 2018 2 19 Report

Oblicz jak najsprytniej.

a) 49 + ( -13 ) + ( - 7 ) =

b) ( -28 ) + 19 + ( -2 ) =

c) ( - 32 ) + 11 + 21 + ( - 40 ) =

d) ( -121 ) + 104 + ( - 9 ) + 6 =

Uzupełnij w różny sposób. W każdym działaniu musi wystąpić przynajmniej jedna liczba ujemna.

a) [ ] + [ ] = 7

[ ] + [ ] = 7

[ ] + [ ] = 7

b) [ ] + [ ] = 12

[ ] + [ ] = 12

[ ] + [ ] = 12

c) [ ] + [ ] = ( - 9 )

[ ] + [ ] = ( - 9 )

[ ] + [ ] = ( - 9 )

Oblicz jak najsprytniej.

a) ( -347) + 598 + ( - 600 ) + 349 =

b) 107 + ( -49 ) + ( - 105 ) + ( - 31 ) =

c) 96 + ( - 83 ) + ( - 27 ) + 14 =

d) ( - 203 ) + ( -54 ) + ( - 36 ) + ( - 17 ) =


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