Adding & Subtracting Large Integers (Ex. 3)

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1. Question 1

   Multiple choice

   A country has 45,678,923 people. After 1 year the population grows by 1,234,567. What is the new population?

2. Question 2

   Multiple choice

   The national debt is £234,567,890. The government pays back £45,678,901. What remains?

3. Question 3

   Multiple choice

   Add three numbers: 12,345,678 + 23,456,789 + 34,567,890 = ?

4. Question 4

   Sequence

   Subtract 2,000,000 each step: 12,000,000; 10,000,000; 8,000,000; ___; 4,000,000.

5. Question 5

   True or false

   Column subtraction works for large integers just as it does for smaller numbers.

More exercises in this module

• Mental vs Written Methods (Ex. 3)

• Large Addition Across Millions (Ex. 5)

• Large Subtraction from Millions (Ex. 6)

• Mixed Operations with Millions (Ex. 7)

• Six-Digit Addition (Ex. 1)

• Adding & Subtracting Large Integers (Ex. 2)