1. The problem is to multiply the given two-digit numbers by one-digit numbers. 2. The multiplication formula is straightforward: multiply each digit of the two-digit number by the one-digit number, carrying over as needed. 3. Let's solve each multiplication step-by-step: - $23 \times 3 = 69$ - $36 \times 9 = 324$ - $36 \times 5 = 180$ - $49 \times 6 = 294$ - $57 \times 7 = 399$ - $68 \times 9 = 612$ - $53 \times 2 = 106$ - $32 \times 4 = 128$ - $42 \times 6 = 252$ - $75 \times 7 = 525$ - $85 \times 8 = 680$ - $96 \times 9 = 864$ - $64 \times 3 = 192$ 4. Each multiplication is done by multiplying the units and tens digits separately and adding the carried values. 5. Final answers: - $23 \times 3 = 69$ - $36 \times 9 = 324$ - $36 \times 5 = 180$ - $49 \times 6 = 294$ - $57 \times 7 = 399$ - $68 \times 9 = 612$ - $53 \times 2 = 106$ - $32 \times 4 = 128$ - $42 \times 6 = 252$ - $75 \times 7 = 525$ - $85 \times 8 = 680$ - $96 \times 9 = 864$ - $64 \times 3 = 192$