DAU 10 PUNCTE VA ROG AJUTAȚI-MĂ​

1.

a= 1,4

[tex]2 \times a = 2 \times 1.4 = 2.8 \\ [/tex]

[tex]10 \times a = 10 \times 1.4 = 14[/tex]

[tex]25 \times a = 25 \times 1.4 = 35[/tex]

[tex]100 \times a = 100 \times 1.4 = 140[/tex]

2.

a=12,15

[tex]2 \times 12.15 = 24.3[/tex]

[tex]10 \times 12.15 = 121.5[/tex]

[tex]25 \times 12.15 = 303.75[/tex]

[tex]100 \times 12.15 = 1215[/tex]

3.

a=125,521

[tex]2 \times 125.521 = 251.042[/tex]

[tex]10 \times 125.521 = 1255.21[/tex]

[tex]25 \times 125.521 = 3138.025[/tex]

[tex]100 \times 125.521 = 12552.1[/tex]

Răspuns:

2×1,4=2,8

10×1,4=14

25×1,4=35

100×1,4=140

2×12,15=24,3

10×12,15=121,5

25×12,5=312,5

100×12,15=1215

2×125,521=251,042

10×125,521=1255,21

25×125,521=3138,025

100×125,521=12552,1

Explicație pas cu pas:

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