Lös ekvationen, skriv ut ALLA STEG! x + 5 = 10

x + 5 = 10 II-5 x = 10 - 5 x = 5

10x = 40 II :10 x = 40:10 x = 4

x + 5 = 12 II -5 x = 12 - 5 x = 7

x - 9 = 3 II + 9 x = 3 + 9 x = 12

x + 685 = 804 II - 685 x = 804 - 685 x = 129

Ekvationer 1 (addition och subtraktion)

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8 questions

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1

30 sec

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2

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3

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5

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8

30 sec