Question

ma ajutati . calculeaza . efectueaza proba : a) 1927+3008; 6175+2999 b) 6000-2873;8001-4564. c) 10000-5709-2543 ;2071+1360+3808

Answer 1

a) 1927+3008=4935
proba: 4935-1927=3008

6175+2999=9174
proba:9174-6175=2999

b) 6000-2873=3127
proba: 3127+2873=6000

8001-4564=3437
proba: 3437+4564=8001

c) 10000-5709-2543=
4291-2543=1748
proba: 5709+2543+1748=10000

2071+1360+3808=
3431+3808=7239
proba: 7239-1360-3808=2071

Answer 2

$a)1927 + 3008 = 4935$

$4935 - 1927 = 3008$

$4935 - 3008 = 1927$

$6175 + 2999 = 9174$

$9174 - 6175 = 2999$

$9174 - 2999 = 6175$

$b)6000 - 2873 = 3127$

$3127 + 2873 = 6000$

$6000 - 3127 = 2873$

$8001 - 4564 = 3437$

$3437 + 4564 = 8001$

$8001 - 3437 = 4564$

$c)10000 - 5709 - 2543 = 4291 - 2543 = 1748$

$4291 - 1748 = 2543$

$2543 + 1748 = 4291$

$2071 + 1360 + 3808 = 3431 + 3808 = 7239$

$7239 - 3431 = 3808$

$7239 - 3808 = 3431$