adding and subtracting

98,765

- 12,345

39,258

- 19,687

• 19,571

• 19,471

• 19,572

23,147

- 12,768

• 10,268

• 10,379

• 11,279

A school held a penny drive. The fourth grade collected 12,085 pennies. The fifth grade collected 11,523 pennies. How many pennies did the two grades collect in all?

• 23,068
• 23,608
• 562
• None of the above

The difference between 8,000 and 159 is

• 7,841
• 8,159
• 7,951
• 8,841

The difference between 4,600 and 2,800 is

• 1,800
• 2,200
• 2,800
• 1,200

The tallest mountain in China is 12,283 feet tall and the tallest mountain in Russia is 12,172 feet tall. What is the sum of these mountains?

• 24,263 feet
• 24,455 feet
• 24,483 feet
• 25,473 feet

5461 + 3908

• 93

• 936

• 9369

• 9368

5461 + 3908

• 93

• 936

• 9369

• 9368