MathCastle
Grade 4ChallengeMulti-Digit Multiplication

Multi-Digit Multiplication · Challenge problem

Look closely: 23×27=62123 \times 27 = 621, 34×36=122434 \times 36 = 1224 and 41×49=200941 \times 49 = 2009. In each one the tens digits are the same and the ones digits add up to 1010. Use the pattern to find 76×7476 \times 74.