Mental vs Written Methods (Ex. 3)

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1. Question 1

   Multiple choice

   A shop has 3,456,890 products. It sells 1,234,567 and receives 987,654 new products. How many are there now?

2. Question 2

   Multiple choice

   Which two steps require a written method? Step A: 12,000 + 8,000; Step B: 7,456,123 − 3,214,567; Step C: 20,000,000 − 10,000,000; Step D: 9,876,543 + 8,765,432.

3. Question 3

   Multiple choice

   A fundraiser collected £4,567,890 in year 1, £3,432,110 in year 2. In year 3 they spent £2,000,000. How much remains?

4. Question 4

   Sequence

   Running total subtracting 1,500,000 each time: 9,000,000; 7,500,000; 6,000,000; ___; 3,000,000.

5. Question 5

   True or false

   Checking an answer using the inverse operation is a good way to verify whether a calculation is correct.

More exercises in this module

• 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. 3)

• Adding & Subtracting Large Integers (Ex. 2)