Question

Vrei repede dau corona va rog​

Answer 1

2.a
$11 \times 17 \times 19 \\ = 187 \times 19 \\ = 3553$
b.
$13 \times 25 \times 8 \\ = 13 \times 200 \\ = 2600$
d.
$13 \times 14 \times 15 \\ = 13 \times 210 \\ = 2730$

e.
$37 \times 35 \times 12 \\ = 37 \times 420 \\ = 15540$

3. a
$2 \times 37 \times 5 \\ = 10 \times 37 \\ = 370$
b.
$2 \times 25 \times 17 \times 5 \times 4 \\ = 10 \times 25 \times 17 \times 4 \\ = 10 \times 100 \times 17 \\ = 1000 \times 17 \\ = 17000$

c.
$250 \times 2 \times 4 \times 579 \times 5 \\ = 1000 \times 2 \times 579 \times 5 \\ = 1000 \times 10 \times 579 \\ = 10.000 \times 579 \\ = 5790000$
4.a.
$104 \times 52 - 179 \\ = 5.408 - 179 \\ = 5229$
b.
$49 \times 28 - 31 \times 14 \\ = 1372 - 434 \\ = 938$
c.
$567 \times 3 + 45 \times 11{}^{} \\ = 1701 + 495 \\ = 2196$

e.
$3021 - 113 \times 19 + 74 \times 86 \\ = 3021 - 2147 + 6364 \\ = 7238$
f.
$67 \times 34 - 24 \times 25 + 22 \times 11 \\ = 2278 - 600 + 242 \\ = 1920$