Fill in the blanks :

(i) 156 x 48 - 156 x 38 = ……………

(ii) 76 x 53 + 76 x 47 = ……………

(iii) 138 x 67 + 62 x 67 = ……………

(iv) 4 x 269 x 25 = ……………

(v) There are …………… whole numbers up to 40.

(vi) …………… is the whole number which has no predecessor.

(i) 156 x 48 - 156 x 38 = 156 x (48 - 38) = 156 x 10 = 1,560.

(ii) 76 x 53 + 76 x 47 = 76 x (53 + 47) = 76 x 100 = 7,600.

(iii) 138 x 67 + 62 x 67 = 67 x (138 + 62) = 67 x 200 = 13,400.

(iv) 4 x 269 x 25 = 269 x (4 x 25) = 269 x 100 = 26,900.

(v) There are 41 whole numbers up to 40.

(vi) 0 is the whole number which has no predecessor.