1. 7 × 2 + 3
7 × 2 + 3
14 + 3
= 17
2. 7 + 4 × 3
7 + 4 × 3
7 + 12
= 19
3. 4!
4! =
4 × 3 × 2 × 1
12 × 2 × 1
24 × 1
= 24
= ( 7 × 2 ) + 3
= ( 7 + 7 ) + 3
= 14 + 3
= 7 + ( 4 × 3 )
= 7 + 12
= 4 × 3 × 2 × 1
= 12 × 2 × 1
= 24 × 1
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1. 7 × 2 + 3
7 × 2 + 3
14 + 3
= 17
2. 7 + 4 × 3
7 + 4 × 3
7 + 12
= 19
3. 4!
4! =
4 × 3 × 2 × 1
12 × 2 × 1
24 × 1
= 24
= ( 7 × 2 ) + 3
= ( 7 + 7 ) + 3
= 14 + 3
= 17
= 7 + ( 4 × 3 )
= 7 + 12
= 19
= 4 × 3 × 2 × 1
= 12 × 2 × 1
= 24 × 1
= 24