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1. 53 – 23 + 3! = …
2. 6! + 5! = …
3. 7! × 2! = …
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$sf53 - 23 + 3!$

$sf = (53 - 23) + (3 times 2 times 1)$

$sf = 30 + 6$

$green{ sf = 36}$

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$sf6! + 5!$

$sf = 6 times 5! + 5!$

$sf = 6 times 5! + 1 times 5!$

$sf = (6 + 1) times 5!$

$sf = 7 times (5 times 4 times 3 times 2 times 1)$

$sf = 7 times 120$

$blue{ sf = 840}$

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$sf7! times 2!$

$sf = (7 times 6 times 5 times 4 times 3 times 2 times 1) times 2$

$sf = 5.040 times 2$

$red{ sf = 10.080}$

Jawaban:

1) 53 – 23 + 3!

= 53 – 23 + (3 x 2 x 1)

= 30 + 6

= 36

2) 6! + 5!

= (6 x 5 x 4 x 3 x 2 x 1) + (5 x 4 x 3 x 2 x 1)

= (30 x 12 x 2) + (20 x 6 x 1)

= (360 x 2) + (120 x 1)

= 720 + 120

= 840

3) 7! x 2!

= (7 x 6 x 5 x 4 x 3 x 2 x 1) x (2 x 1)

= (42 x 20 x 6 x 1) x 2

= (840 x 6) x 2

= 5.040 x 2

= 10.080

Gambar Jawaban