Question

19+7
6 7

10+12
7 7

(12+15)+12
( 3 2) 5

1350(+250+392)

12500+2500

2500-6500

12650-4980

0+299

Answer 1

Explicación paso a paso:

19+7= 26

6 7 (?)

6+7=13

10+12=22

7 7. (?)

7+7= 14

(12+15)+12=27+12=39

(3 2) 5 (?)

(3+2)+5=5+5=10

1350(+250+392)= 1350 +642=1992

12500+2500=15000

2500-6500= -4000

12650-4980=7670

0+299=299