Question

Va rog ajutaţi ma ex 7 dau coroana si 35 de puncte

Answer 1

Răspuns:

Explicație pas cu pas:

3dl + 7 dl = 1 l

40 cl + 60 cl = 1 l

400 ml + 600 ml = 1 l

95 cl + 5 cl = 1 l

1l = 60 cl + 40 cl

1l = 1 dl + 9 dl

1 l = 455 ml +545 ml

1l =655 ml +345 ml

Answer 2

Răspuns:

Explicație pas cu pas:

3 dl + ? dl = 1 l = 10 dl

10 dl - 3 dl = 7 dl

V:   3 dl + 7 dl = 10 dl = 1 l;   dl < l de 10 ori

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40 cl + ? cl = 1 l = 100 cl;   l > cl de 100 de ori

100 cl - 40 cl = 60 cl

V:  40 cl + 60 cl = 100 cl = 1 l

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400 ml + ? ml = 1 l = 1 000 ml;   litru > ml de 1 000 de ori

1 000 ml - 400 ml = 600 ml

V:   400 ml + 600 ml = 1 000 ml = 1 l

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95 cl + ? cl = 1 l = 100 cl

100 cl - 95 cl = 5 cl

V:   95 cl + 5 cl = 100 cl = 1 l

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1 l = 60 cl + ? cl

1 l = 100 cl

100 cl - 60 l = 40 cl

V:   1 l = 100 cl = 60 cl + 40 cl

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1 l = 1 dl + ? dl

1 l = 10 dl

10 dl - 1 dl = 9 dl

V:  1 dl + 9 dl = 10 dl = 1 l

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1 l = 455 ml + ? ml

1 l = 1 000 ml

1 000 ml - 455 ml = 545 ml

V:  455 ml + 545 ml = 1 000 ml = 1 l

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1 l = 655 ml + ? ml

1 000 ml - 655 ml = 345 ml

V:   655 ml + 345 ml = 1 000 ml = 1 l