Computing Multi-Digit Numbers

Place value is based on

• addition.

• multiplication tables.

• powers of 10.

• vertical lines.

To multiply multi-digit numbers, it’s important to line up the numbers

• vertically.

• horizontally.

• at an angle.

• in numerical order.

To multiply multi-digit numbers most efficiently, put the number with ________ on top.

• the most digits

• the fewest digits

• the ones place

• the even digits

Start by multiplying with the digit on the

• top left.

• top right.

• bottom left.

• bottom right.

In the number 1,659, which digit is in the tens place?

• 1

• 6

• 5

• 9

Multiply 4 x 75.

• 168

• 750

• 794

• 300

Multiply 7430 x 5.

• 6,687

• 37,140

• 37,150

• 44,842

Which equation accurately represents the array?

• 4 x 5 = 20

• 5 x 5 = 25

• 4 x 5 = 25

• 4 x 4 = 16

Which equation accurately represents the array?

• 3 + 3 = 9

• 9 - 3 = 6

• 3 x 3 = 6

• 3 x 3 = 9