Question

3.Transforma exercitiile dupa model:300+40=3×100+4×10
500+50, 600+20, 200+70, 800+60, 300+50.

Answer 1

$500 + 50 = 5 \times 100 + 5 \times 10 \\ 600 + 20 = 6 \times 100 + 2 \times 10 \\ 200 + 70 = 2 \times 100 + 7 \times 10 \\ 800 + 60 = 8 \times 100 + 6 \times 10 \\ 300 + 50 = 3 \times 100 + 5 \times 10$

Answer 2

500 + 50 = 5 x 100 + 5 x 10 

600 + 20 = 6 x 100 + 2 x 10 

 200 + 70 = 2 x 100 + 7 x 10 

 800 + 60 = 8 x 100 + 6 x 10 

300 + 50 = 3 x 100 + 5 x 10