πŸ’‘ Activity β€” Solutions

πŸ’‘ Activity β€” Solutions


πŸ”Ή Set A :


1️⃣ 6 Γ· 3 + 4 Γ— 2

  • 6 Γ· 3 = 2 β†’ 4 Γ— 2 = 8 β†’ 2 + 8 = 10


2️⃣ 6 Γ— 4 βˆ’ 12 Γ· 3 βˆ’ 8

  • 6 Γ— 4 = 24 β†’ 12 Γ· 3 = 4 β†’ 24 βˆ’ 4 βˆ’ 8 = 12


3️⃣ 4 Γ— 4 βˆ’ 3 Γ— 3 βˆ’ 16 Γ· 4

  • 4 Γ— 4 = 16 β†’ 3 Γ— 3 = 9 β†’ 16 βˆ’ 9 = 7 β†’ 16 Γ· 4 = 4 β†’ 7 βˆ’ 4 = 3


4️⃣ 20 βˆ’ (3 Γ— 23 βˆ’ 5)

  • 3 Γ— 23 = 69 β†’ (69 βˆ’ 5) = 64 β†’ 20 βˆ’ 64 = βˆ’44


5️⃣ (5 + 2)Β² βˆ’ 9 Γ— 3 + 2Β³

  • (5 + 2)Β² = 7Β² = 49 β†’ 9 Γ— 3 = 27 β†’ 2Β³ = 8 β†’ 49 βˆ’ 27 + 8 = 30


6️⃣ (7 βˆ’ √9) Γ— (42 βˆ’ 3 + 1)

  • √9 = 3 β†’ (7 βˆ’ 3) = 4 β†’ (42 βˆ’ 3 + 1) = 40 β†’ 4 Γ— 40 = 160



πŸ”Ή Set B :


1️⃣ 5 Γ— (2Β² + 3) + (2Β³)Β²

  • 2Β² = 4 β†’ (4 + 3) = 7 β†’ 5 Γ— 7 = 35 β†’ 2Β³ = 8 β†’ 8Β² = 64 β†’ 35 + 64 = 99


2️⃣ 6 Γ— 2 + 5 Γ— 1 + 4 Γ· 2 βˆ’ 1

  • 6 Γ— 2 = 12 β†’ 5 Γ— 1 = 5 β†’ 4 Γ· 2 = 2 β†’ 12 + 5 + 2 βˆ’ 1 = 18


3️⃣ 1 + (2 Γ— (4 βˆ’ 3 + 1) + 7) βˆ’ 2

  • (4 βˆ’ 3 + 1) = 2 β†’ 2 Γ— 2 = 4 β†’ 4 + 7 = 11 β†’ 1 + 11 βˆ’ 2 = 10


4️⃣ 10 + 6 Γ— (3 βˆ’ 2) Γ— 8 Γ· 24 βˆ’ 1

  • (3 βˆ’ 2) = 1 β†’ 6 Γ— 1 Γ— 8 Γ· 24 = 48 Γ· 24 = 2 β†’ 10 + 2 βˆ’ 1 = 11


5️⃣ (20 βˆ’ 18)Β³ Γ· 8 Γ— 3 βˆ’ 1

  • (20 βˆ’ 18) = 2 β†’ 2Β³ = 8 β†’ 8 Γ· 8 = 1 β†’ 1 Γ— 3 = 3 β†’ 3 βˆ’ 1 = 2


6️⃣ (2 + 1 βˆ’ 3 + 1 + 4)Β² βˆ’ 2 Γ— 4

  • (2 + 1 βˆ’ 3 + 1 + 4) = 5 β†’ 5Β² = 25 β†’ 2 Γ— 4 = 8 β†’ 25 βˆ’ 8 = 17

ο»Ώ


βœ… Final answers (in order)

  • Set A: 10, 12, 3, βˆ’44, 30, 160
  • Set B: 99, 18, 10, 11, 2, 17


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