Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 1 - Whole Numbers - 1.4 Multiplying Whole Numbers - 1.4 Exercises: 29

Answer

258447

Work Step by Step

Start by multiplying in the ones column. 7 * 1 = 7 ones write 7 ones in the ones column. 3 6 9 2 1 x 7 7 Next, multiply 7 times 2 tens. 7 * 2 tens = 14 tens write 4 tens in the tens column and write 1 hundreds at hundred’s column. 1 3 6 9 2 1 x 7 4 7 Next, multiply 7 times 9 hundreds. 7 * 9 hundreds = 63 hundreds Add the 1 hundreds that was written at the top of the hundred’s column. 63 hundreds + 1 hundreds = 64 hundreds write 4 hundreds in the hundred’s column and write 6 thousands in the thousand’s column. 6 1 3 6 9 2 1 x 7 4 4 7 Next, multiply 7 times 6 thousands. 7 * 6 thousands = 42 thousands. Add the 6 thousands that was written at the top of the thousand’s column. 42 thousands + 6 thousands = 48 thousands write 8 thousands in the thousand’s column and write 4 ten thousands in the ten thousand’s column. 4 6 1 3 6 9 2 1 x 7 8 4 4 7 Next, multiply 7 times 3 ten thousands. 7 * 3 ten thousands = 21 ten thousands. Add the 4 ten thousands that was written at the top of the ten thousand’s column. 21 ten thousands + 4 ten thousands = 25 ten thousands 4 6 1 3 6 9 2 1 x 7 2 5 8 4 4 7
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