Question

express the meter or using decimals
(a)25cm(b)21m45cm(c)90m7cm​

Answer 1

Answer:

(a) 15 cm

15\:cm=15\times\frac{1}{100}=\frac{15}{100}=0.15\:m

(b) 6 cm

6\:cm=6\times\frac{1}{100}=\frac{6}{100}=0.06\:m

(c) 2 m 45 cm

2+45\:cm=2+45\times\frac{1}{100}=2+\frac{45}{100}=2+0.45=2.45\:m

(d) 9 m 7 cm

9+7\:cm=9+7\times\frac{1}{100}=9+\frac{7}{100}=9+0.07=9.07\:m

(e) 419 cm

419\:cm=419\times\frac{1}{100}=\frac{419}{100}=4.19\:m

Answer 2

(a)25cm = (25/100)m = 0.25m

(b)21m45cm = (21 + 45/100)m = 21 + 0.45m = 21.45m

(c)90m7cm​ = (90 + 7/100)m = 90 +0.07m = 90.07m