Estimate Products by 1-Digit Numbers

This is when you find an answer that is close to the exact amount

• close

• regroup

• estimate

• add

Estimate: 
289 x 7 = 

• 1,000

• 210

• 1,400

• 2,100

What is the first step in finding the estimated product?

• Multiply the ones digit of the second number by the digits of the first number.

• Round off all the numbers to the highest place value.

• Multiply the nonzero digits.

• Count the number of zeros then write it as a product.

Estimate: 9,379 x 5

(round to the nearest thousand)

Estimate the product
58 x 3

• 50 x 3

• 60 x 3

• 50 x 10

• 60 x 10

Estimate.
272 X 5=

• 1,000

• 1,300

• 1,500

• 1,200

ESTIMATE the PRODUCT
78 X 6=

• 4,200

• 420

• 480

• 4,800

Estimate. 834 x 10=

• 80

• 800

• 8,340

• 8,000

Estimate. 730 X 4=

• 3,200

• 280

• 2,800

• 28,000

Estimate. 272 X 5=

• 1,000

• 1,300

• 1,500

• 2,000