Answer:
Step-by-step explanation:
Write 34 in tens and units.
34 = 30 + 4
9(30 + 4)
9 * 30 = 270
9* 4 = 36
270 + 36 = 306
After awhile if your practice enough, you can do them in your head.
Answer:
n =2
Step-by-step explanation:
2=-9n+22-n
2 = -10n +22
-20 = -10n
n = 2
Answer:
carnea estral esto (e,) d=17 =n estalio perana con tina!
Step-by-step explanation:
Answer:
39cm
Step-by-step explanation: 19cm+15cm+5cm=39