1. Multiplying
decimals

2. 1
Estimate your
answer
e.g. 24.6 x 39.5
approximately 25 x 40 = 1000

3. 2
Remove the
decimal point
e.g. 24.6 x 39.5
becomes 246 x 395

4. 3
Partition each
number
246 x 395
(200+40+6) x (300+90+5)

5. 4
Multiply using the
grid method
X 300 90 5
200 60 000 18 000 1 000 79 000
40 12 000 3 600 200 15 800
+ 2 370
6 1 800 540 30
97 170

6. 5
Replace the
decimal point
Estimate = 1000
So 97170 becomes 971.70