Page 33 - BUSINESS MATHEMATICS MODULE 1 (WHOLE)_revised 10.20.2020

LESSON 2: C. MULTIPLICATION
Course Guide
8. Multiplication of Numbers Containing End Zeroes

When there are end zeroes on the right of the multiplier or the multiplicand,
or both and the numbers are whole numbers, we multiply only the numbers at the

left of the end zeroes. Then we annex to the product as many zeroes as there are end

zeroes in both the multiplier and the multiplicand. This method saves time and also M1_L1
cuts down the possibility of error.

Example 1.
Long Method Quick Method
356 356
× 400 × 400
000 142400 M1_L2
000
1424 .
142400

Example 2.
Long Method Quick Method
5,600 5,600
× 3.40 × 3.40
00 00 224
2,240 00 168 .
16,800 00 . ₱ 19,040.00
₱ 19,040.00

LESSON 2: FUNDAMENTAL OPERATIONS 2.11 | P a g e