What is 9 × 8 + 79 △ 5?

What is 9 × 8 + 79 △ 5?

The answer is: 87.8

6.25 plus 79 times 6.25 divided by 0.5

（6.25+79x6.25）/0.5=6.25(79+1)/0.5
=6.25x80x2
=1000

8100 divided by (27 divided by 7) =?

42.8571428571429

How to divide 5400-2910 by 28 * 27

(5400-2700-210) divided by 28 * 27

The remainder of 27 ^ 30 divided by 7

27^30
=(28 - 1)^30
=∑Ai*28^i + 1^30
It can be seen that the previous item can be divided by 7 because it is a multiple of 28, and the remainder is 0. Then, the final remainder can only be the last item: 1 ^ 30 = 1

276 times two seventh divided by 27.6

276 times two seventh divided by 27.6
=276 △ 27.6x7 / 2
=10 * 2 / 7
=20 out of 7
=Two and six out of seven
Hope to solve your question_ ⌒☆

7800 ／ 260 and 5400 ／ 120 are calculated by the simple method of recursive equation?

Here are the solutions to these two problems
7800÷260
=780÷26
=390÷13
=30
5400÷120
=540÷12
=270÷6
=90÷2
=45

5400 divided by 125

5400÷125
=（5400×0.008）÷（125×0.008）
=5400×0.008÷1
=5.4×8
=43.2

Simple operation: 5400 △ 25 × 4

5400÷25×4
=54×100÷25×4
=54×4×4
=216×4
=864
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1.08 times 0.8 divided by 0.27

1.08×0.8÷0.27
=1.08÷0.27×0.8
=4×0.8
=3.2