Question

Rezolvati ex 4 si 5(5 doar un mod) urgent dau caoroana

Answer 1

Explicație pas cu pas:

ex4:

a) 3x(7+15+13) = 3x35 =105

b) 33x(117+15+113) = 33x245=8085

c) 202x(327-307+23) = 202x43= 8686

d) 217x(407-397-1) = 217x 9=1953

e) 707x(1725+324-321) = 707x1728

f) 111:111 + 222:111 + 333:111 + 444:111 = 1+2+3+4 = 10

ex 5

a) 17x200 = 3400

b) 40x15 = 600

c) 32x10 = 320

d) 240x10 = 2400

e) 1024x(379+121-450)= 1024x50= 51200

f) 111:111 + 222:111 + 333:111 + 444:111 +10 = 20

Spor!