Unit 7 Review Part 1: NO CALCULATOR

Estimate the following equation: 6 x 454

• 6 x 500

• 6 x 450

• 6 x 400

• 10 x 500

When estimating the equation 4 x 892, will the ACTUAL PRODUCT be more or less than the estimate?

Estimate 65 x 83. Show how you estimated.

• 65 x 80

• 70 x 83

• 70 x 80

• 60 x 90

Solve 65 x 83

Solve 5, 696 x 7 using the standard algorithm.

Solve 6,241 x 9 using a method of your choice.

Sarai and Franky solved 57 x 78 and compared their answers. Sarai's product was 4,446 and Franky's product was 5,276. Using ESTIMATION, whose answer is most reasonable?

• Sarai

• Franky