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Estimate the quotient using front-end estimation. (divide)

12) 817 19

13) 3615 72

14) 232 64

15) 559 81

16) 2986 222

17) 10275 232

18) 7428 286

19) 7143 369

20) 628,597 1525

Sagot :

Answer:

12) 817 19. It becomes

800/20 = 40

13) 3615 72. It becomes

4000/70 = 57.1 = 60

14) 232 64. It becomes

200/60 = 33.3 = 30

15) 559 81. It becomes

600/80 = 7.5 = 8

16) 2986 222. It becomes

3000/200 = 15

17) 10275 232. It becomes

10000/200 = 50

18) 7428 286. It becomes

7000/300 = 23.3 = 20

19) 7143 369. It becomes

7000/400 = 17.5 = 18

20) 628,597 1525, it becomes

600000 - 2000 = 300

Step-by-step explanation:
the answer is 18

hopes this helps
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