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lana66690 [7]
3 years ago
14

guy wants to add 7,145 and 8,265 and using mental math strategies what steps could guy take to add the number is guy,s answer co

rrect explain
Mathematics
2 answers:
Marat540 [252]3 years ago
7 0

Answer:

The sum of two numbers is 15,410.

Step-by-step explanation:

We have to add two numbers using mental math trick. The numbers to be added is 7145 and 8265.

We can use the associative property of addition to solve this problem.

Associative property of addition states that:

a + (b+c) = (a+b) + c

Now,

7145 + 8265

=(7000 + 100 + 40 + 5)0 + (8000 + 200 + 60 +5)\\=(7000 + 8000) + (100 + 200) + (40 + 60) + (5+5)\\=15000 + 300 + 100 + 10\\=15410

Thus, the sum of two numbers is 15,410.

TEA [102]3 years ago
4 0
First add the biggest number like thousand together and the go in to the last numbers
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