Multiplication of 1-Digit Number by Multiples of 10 (WS3) Grade 4By Felisa / September 8, 2019 When multiplying multiples of 10, just count the number of zeroes then multiply the whole numbers.Example: 6 x 8000 = 48000 9 x 7000 = 63000Multiplication of 1-Digit Number by Multiples of 10 (WS3) Grade 4