Addisjon og subtraksjon
Her er litt flere oppgaver du kan kose deg med.
Oppgave 1
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\begin{align}248 + 6482 = 6000+(200+400)+(40+80)+(8+2)=6000+600+120+10=6730\end{align}
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\begin{align}4466 + 248 =4714\end{align}
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\begin{align}422 + 4242 =4664\end{align}
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\begin{align}4268 + 6682 &=4000+6000+200+600+60+80+8+2\\&=10000+800+140+10\\&=10000+950\\&=10950\end{align}
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\begin{align}2868 + 482 =3350\end{align}
Oppgave 2
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\begin{align}4462 + 8888 =13350\end{align}
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\begin{align}8062 + 6444 =14506\end{align}
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\begin{align}4688 + 4820 =9508\end{align}
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\begin{align}646 + 84 =730\end{align}
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\begin{align}206 + 6482 =6688\end{align}
Oppgave 3
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\begin{align}642 + 8286 =8928$
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\begin{align}2468 + 6488 =8956$
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\begin{align}6666 + 6666 =13332$
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\begin{align}208 + 8646 =6210\end{align}
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\begin{align}2888 + 6002 =8890\end{align}
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\begin{align}8888 + 888 =9776\end{align}
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\begin{align}90,08 + 86,46 =176,54\end{align}
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\begin{align}8000 + 7,888 =8007,888\end{align}
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\begin{align}6000 + 5666 =11666\end{align}
Oppgave 4
Oppgave 5
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\begin{align}988,8 + 6002 =6990,8\end{align}
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\begin{align}5268 + 3682 =8950\end{align}
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\begin{align}20,08 + 4,82 =24,9\end{align}
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\begin{align}9562 + 888 =10450\end{align}
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\begin{align}8062 + 644 =8706\end{align}
Oppgave 6
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\begin{align}357 + 1735 =2092\end{align}
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\begin{align}199,7 + 7,53 =207,23\end{align}
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\begin{align}19,59 + 537,1 =556,69\end{align}
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\begin{align}2888-60 =2868\end{align}
Oppgave 7
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\begin{align}2468-482 =1986\end{align}
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\begin{align}8062-6444 =1618\end{align}
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\begin{align}4688-4120 =568\end{align}
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\begin{align}6466-5884 =582\end{align}
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\begin{align}2060-1482 =578\end{align}
Oppgave 8
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\begin{align}6842-286 =6556\end{align}
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\begin{align}2468-1488 =980\end{align}
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\begin{align}6666-666 =6000\end{align}
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\begin{align}2000,8-646 =1354,8\end{align}
Oppgave 9
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\begin{align}8888-888 =8000\end{align}
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\begin{align}9008-8646 =362\end{align}
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\begin{align}5468-846 =4622\end{align}
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\begin{align}8000-7888 =112\end{align}
Oppgave 10
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\begin{align}44,66-24,28 =20,38\end{align}
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\begin{align}24,22-2,42 =21.8\end{align}
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\begin{align}462-888 =-426\end{align}
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\begin{align}128-42 =\end{align}
Oppgave 11
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\begin{align}806,2-64,4 =741,8\end{align}
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\begin{align}35,7-13,5 =22,2\end{align}
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\begin{align}1997-75,3 =1921,7\end{align}
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\begin{align}1959-371 =1588\end{align}
Oppgave 12
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\begin{align}9888-6002 =3886\end{align}
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\begin{align}5268-3682 =1586\end{align}
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\begin{align}20,08-4,82 =15,26\end{align}
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\begin{align}9562-888 =8674\end{align}