Question

1.
$1 \times 3 = $ \t $40 \div 4 = $
$2 \times 3 = $ \t $4 \div 4 = $
$3 \times 3 = $ \t $36 \div 4 = $
$4 \times 3 = $ \t $8 \div 4 = $
$5 \times 3 = $ \t $32 \div 4 = $
$6 \times 3 = $ \t $12 \div 4 = $
$7 \times 3 = $ \t $28 \div 4 = $
$8 \times 3 = $ \t $16 \div 4 = $
$9 \times 3 = $ \t $24 \div 4 = $
$10 \times 3 = $ \t $20 \div 4 = $

Explanation:

Step1: Calculate left column (multiplication by 3)

• \(1\times3 = 3\)
• \(2\times3 = 6\)
• \(3\times3 = 9\)
• \(4\times3 = 12\)
• \(5\times3 = 15\)
• \(6\times3 = 18\)
• \(7\times3 = 21\)
• \(8\times3 = 24\)
• \(9\times3 = 27\)
• \(10\times3 = 30\)

Step2: Calculate right column (division by 4)

• \(40\div4 = 10\)
• \(4\div4 = 1\)
• \(36\div4 = 9\) (Note: \(36\div4 = 9\), since \(4\times9 = 36\))
• \(8\div4 = 2\)
• \(32\div4 = 8\)
• \(12\div4 = 3\)
• \(28\div4 = 7\)
• \(16\div4 = 4\)
• \(24\div4 = 6\)
• \(20\div4 = 5\) (Note: \(20\div4 = 5\), since \(4\times5 = 20\))

Answer:

\(1\times3 =\) 3	\(40\div4 =\) 10
\(2\times3 =\) 6	\(4\div4 =\) 1
\(3\times3 =\) 9	\(36\div4 =\) 9
\(4\times3 =\) 12	\(8\div4 =\) 2
\(5\times3 =\) 15	\(32\div4 =\) 8
\(6\times3 =\) 18	\(12\div4 =\) 3
\(7\times3 =\) 21	\(28\div4 =\) 7
\(8\times3 =\) 24	\(16\div4 =\) 4
\(9\times3 =\) 27	\(24\div4 =\) 6
\(10\times3 =\) 30	\(20\div4 =\) 5