Grade 4 - Mental Math - August Month

1. 1. 6430 + 200 =

• 8,230

• 8,430

• 7,820

• 6,630

2. 2. 992 + 100 =

• 1,092

• 10,992

• 1,029

• 10,920

3. 3. 4356 X 1 =

• 4356

• 0

• 4357

• None of these

4. 4. 7890 - 300 =

• 7,550

• 7,944

• 7,509

• 7,590

5. 5. 90 X 8 =

• 7,120

• 98

• 720

• 702

6. 6. 50,704 - 10,704 =

• 40,704

• 40,008

• 40,000

• 40,700

7. 7. 2 X 0 X 4 X 3 X 18 =

• 0

• 24

• 342

• 432

8. 8. 9689 - 8000

• 1,000

• 1,600

• 1,689

• 1680

9. 9. 6 X 30 =

• 1800

• 1830

• 1860

• 1680

10. 10. Add 57903 & 1000

• 57,000

• 67,903

• 67,000

• 58,903