Question

calculeaza apoi verifica prin adunare si scadere
435+124
589+352
705-204
890-320
659+238
382+495
169+428
594+273
273+285
396+476
​

Answer 1

Explicație pas cu pas:

435+124=559

•559-124=435

589+352=941

•941-352=559

705-204=501

•501+204=705

890-320=570

•570+320=890

659+238=897

•897-238=659

382+495=877

•877-495=382

169+428=597

•597-428=169

594+273=867

•857-273=594

273+285=558

•558-273=285

396+476=872

•872-396=476

Answer 2

Explicație pas cu pas:

435+124=559

V:559-124=435

589+352=941

V:941-589=352

705-204=501

V:501+204=705

890-320= 570

V:570+320=890

659+238=897

V: 897-659=238

382+495=877

V:877-383=495

169+428=597

V: 597-428=169

594+273=867

V:867-594=273

273+285= 558

V:558-273=285

396+476=872

V:872-476=396