Question

B.1 Complete the following statements :
(1) 345 x 1 =
(in) 620 x 25 = 25 x
(v) 48 x 64 = 64 x 40 + 64 x ....
(ii) 640 x 0 =
(iv) 42 x 15 x 10 = 10 x 15
(vi) 52 x 16 = 16 x (.......​

Answer 1

1.

$345 \times 1 = 345$

2.

$620 \times 25 = 25 \times 620$

3.

$48 \times 64 \\ = (40 + 8) \times 64 \\ = 64 \times 40 + 64 \times 8$

4.

$640 \times 0 = 0$

5.

$42 \times 15 \times 10 = 10 \times 15 \times 42$

6.

$52 \times 16 = 16 \times (52)$