Question

Ex 2 acum rapid dau coroana

Answer 1

A:a)67+10-1 =77-1 =76

b) 128+99 =128+100-1 =228-1 +227

c)3287+999 =3287+1000-1 =4287-1 =4286

d)59+8 =59+10-2 =69-2 =67

e)345+98 +345+100-2 =445-2 =443

f)5498+998 =5498+1000-2 =6498-2 =6496

B):a)58+11 =58+10+1 =68+1 =69

b)165+101 = 165+100+1 =265+1 =266

c)3259+1001 = 3259+1000+1 =4259+1 =4260

d)79+12 =79+10+2 =89+2 =91

e)542+102 =542+100+2 =642+2 =644

f)2685+1002 =2685+1000+2 =3685+2 =3687

Sper ca e bine :)