Question

4. Replace each blank with a power of 10, with 10 or with 1 (0853 = (8 x 10) + (5 x 10) + (3 × -) (i) . (ii) 3.891 = ( 3 1478 (​

Answer 1

Step-by-step explanation:

(i) 103×107

=(100+3)(100+7)

=(100)

2

+(3+7)(100)+(3)(7)

=10000+1000+21=11021

(ii) 95×96

=(90+5)(90+6)=(90)

2

+(5+6)(90)+(5)(6)

=8100+990+30=9120

(iii) 104×96

=(100+4)(100−4)

=(100)

2

−(4)

2

=10000−16=9984