Multiplication by 0 and 1
(1) Complete the sentences.
A number multiplied by ____ gives zero.
If a number is multiplied by ____ it stays the same.
(2) Multiply.
6 • 0 = _______ 9 • 0 = _______ 2 • 0 = _______ 8 • 0 = _______ 7 • 0 = _______
10 • 0 = _______ 1 • 0 = _______ 5 • 0 = _______ 3 • 0 = _______ 4 • 0 = _______
(3) Multiply.
4 • 1 = _______ 3 • 1 = _______ 6 • 1 = _______ 9 • 1 = _______ 2 • 1 = _______
8 • 1 = _______ 1 • 1 = _______ 10 • 1 = _______ 7 • 1 = _______ 5 • 1 = _______
(4) Compare the expressions in the table and fill in with <, > or =.
| 4 • 0 2 | 9 + 0 6 | 10 • 1 7 | 3 + 1 5 |
| 5 1 • 0 | 2 10 + 1 | 8 4 • 1 | 7 9 + 1 |
| 8 • 0 1 | 6 + 0 0 • 0 | 4 • 1 5 | 5 + 1 3 • 1 |
(5) Calculate.
| 12 • 1 = ____ | 28 • 0 = ____ | 5 • 1 = ____ | 13 • 0 = ____ |
| 25 • 0 = ____ | 3 • 1 = ____ | 1 • 1 = ____ | 10 • 0 = ____ |
| 19 • 1 = ____ | 18 • 0 = ____ | 8 • 0 = ____ | 9 • 1 = ____ |
| 16 • 1 = ____ | 24 • 0 = ____ | 7 • 1 = ____ | 21 • 0 = ____ |
| 22 • 0 = ____ | 6 • 1 = ____ | 0 • 1 = ____ | 4 • 0 = ____ |
| 23 • 1 = ____ | 27 • 0 = ____ | 15 • 0 = ____ | 30 • 1 = ____ |
(6) Enter the missing number.
| 56 • = 0 | 3 • = 3 | 83 • = 0 | 52 • = 52 |
| • 69 = 0 | • 96 = 96 | • 43 = 43 | • 14 = 0 |
| 1 • = 0 | 46 • = 46 | 93 • = 0 | 72 • =72 |
| • 96 = 0 | • 64 = 0 | • 22 = 22 | • 84 = 0 |