Question

write the following decimal numbers in expanded form:
a) 359.8
b) 79.012
c) 810.04
d) 53.007​

Answer 1

Answer:

a) 359.8 = 3 x 100 + 5 x 10 + 9 x 1 + 8 x 0.1

b) 79.012 = 7 x 10 + 9 x 1 + 0 x 0.1 = 1 x 0.01 + 2 x 0.001

c) 810.04 = 8 x 100 + 1 x 10 + 0 x 1 + 0 x 0.1 + 4 x 0.01

d) 53.007 = 5 x 10 + 3 x 1 + 0 x 0.1 + 0 x 0.01 + 7 x 0.001

Answer 2

Given:

write the following decimal numbers in expanded form

So convert decimal form into expanded form are as follows

(a) 359.8 we get

300        +   50       +   9    + 0.8

3 × 100   +  5 × 10  + 9 × 1  +  0.1  × 8

b) 79.012

70       +   9      +  0.0      +   0.01       +  0.002

7 × 10   + 9 × 1  + 0.0 ×0  + 0.01 × 1  + 0.001 × 2

c) 810.04

800       +  10      +  000       +   0.0      + 0.04

8 × 100  +  1 ×10  +  000×0  +   0.0×0  +0.01 × 4

d) 53.007

50       +  3       + 0.0         +  0.00       +  0.007

5 × 10  +  3 × 1  + 0.0 × 0   + 0.00 × 0  +  0.001 × 7