Question

Repede cât fac la română​

Answer 1

Explicație pas cu pas:

1)

$(420 \times 5 + 31) - 20 \times 25$

$(2100 + 31) - 500$

$2131 - 500$

$1631$

2)

$1950 - (27 \times 25 + 40 \div 4)$

$1950 - (675 + 10)$

$1950 - 685$

$1265$

3)

$39 \times 400 + (23 + 2 \times(23 - 2 \times 3))$

$15600 +( 23 + 2 \times (23 - 6))$

$15600 + (23 + 2 \times 17)$

$15600 + (23 + 32)$

$15600 + 57$

$15657$

4)

$((470 \times 50 - 2 \times 190) + 70 \div 10 \times 19) - 52$

$((23500 - 380) + 7 \times 19) - 52$

$((23500 - 380) + 133) - 52$

$(23120 + 133) - 52$

$23253 - 52 = 23201$

Sper că te-am ajutat<33