Chapter pre-diagnostic

Estimate by rounding to the nearest ten:

85-49=___-___=___

• 90; 50; 40

• 90; 40; 50

• 80; 40; 40

Estimate by rounding to the nearest ten:

95-27=___-___=___

• 100; 30; 70

• 90; 30; 60

• 100; 20; 80

Estimate by rounding to the nearest ten:

76-38=___-___=___

• 80; 40; 40

• 70; 30; 40

• 80; 30; 50

Rohan went to a store and bought items worth 63 dollars. Anika bought items worth 29 dollars. If they both round their expenses to the nearest ten, what would be the rounded expenses of Rohan and Anika, and what would be the difference?

• 60; 30; 30

• 70; 30; 40

• 60; 20; 40

Estimate by rounding to the nearest hundred.

733-195=___-___=___

• 800; 200, 600

• 730, 200, 530

• 700; 200; 500

• 730; 190; 540

Estimate by rounding to the nearest ten:

54-21=___-___=___

• 50; 20; 30

• 60; 20; 40

• 50; 30; 20

Estimate by rounding to the nearest hundred.

812-276=___-___=___

• 800; 300; 500

• 810; 270; 540

• 800; 200; 600

• 810; 280; 530

Estimate by rounding to the nearest ten:

78-33=___-___=___

• 80; 30; 50

• 70; 30; 40

• 80; 40; 40

Isla went to a store and bought items worth 250 dollars. She gave the cashier 142 dollars. How much more does she need to pay?

Align and subtract.

700-256

• 556

• 444

• 554

• 500