1. Which is the smallest natural number?
1. Which is the smallest natural number?2. Which is the smallest whole number?
3. Carry out the additions 273 + 56 + 44 in the easier way, using the known properties.
4. Carry out the additions 5107 + 2950 + 343 in the easier way, using the known properties.
5. Carry out the multiplications 48 x 5 x 2 in the easier way, using the properties.
6. Carry out the multiplications 16 x 25 x 408 in the easier way, using the properties.
7. Rewrite 9 (3 + 14) in the form of a x b + a x c.
8. Rewrite 20 (58 + 109) in the form of a x b + a x c.
9. Rewrite 15 x 3 + 15 x 7 in the form of a (b + c).
10. Rewrite 9 x 38 + 9 x 12 in the form of a (b + c).
Originally posted 2016-03-20 22:13:36.