1. (21 ÷ 7) + (18 + 2) = 35
2. 15 + [ 4 (10 – 5) ] =
3. ( 4 + 16 ) – [ 2 (10 ÷ 5) ] =
4. (12 + 8 – 2) ÷ [ 12 – (7 + 4 - 8) ] =
Respuestas a la pregunta
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2
Respuesta:
1) 23
2) 35
3) 16
4) 2
Explicación paso a paso:
1. (21 ÷ 7) + (18 + 2) =
3 + 20 = 23
2. 15 + [ 4 (10 – 5) ] =
15 + [4(5)] =
15 + [20] =
15 + 20 = 35
3. ( 4 + 16 ) – [ 2 (10 ÷ 5) ] =
(20) - [2(2)] =
20 - [4] =
20 - 4 = 16
4. (12 + 8 – 2) ÷ [ 12 – (7 + 4 - 8) ] =
18 ÷ [12-(3)] =
18÷9 = 2
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