Question

Find the product:

(i) 5.4 × 16
(ii) 3.65 × 19
(iii) 0.854 × 12
(iv) 36.73 × 48
(v) 4.125 × 86
(vi) 104.06 × 75
(vii) 6.032 × 124
(viii) 0.0146 × 69
(ix) 0.00125 × 327

Answer 1

We have the following:

(i) 54 $\times$ 16 = 864
∴ 5.4 $\times$ 16 = 86.4 [1 place of decimal]

(ii) 365 $\times$ 19 = 6935
∴ 3.65 $\times$ 19 = 69.35 [2 places of decimal]

(iii) 854 $\times$ 12 = 10248
∴ 0.854 $\times$ 12 = 10.248 [3 places of decimal]

(iv) 3673 $\times$ 48 = 176304
∴ 36.78 $\times$ 48 = 1763.04 [2 places of decimal]

(v) 4125 $\times$ 86 = 354750
∴ 4.125 $\times$ 86 = 354.750 [3 places of decimal]
= 354.75

(vi) 10406 $\times$ 75 = 780450
∴ 104.06 $\times$ 75 = 7804.50 [2 places of decimal]
= 7804.5

(vii) 6032 $\times$ 124 = 747968
∴ 6.032 $\times$ 124 = 747.968 [3 places of decimal]

(viii) 146 $\times$ 69 = 10074
∴ 0.0146 $\times$ 69 = 1.0074 [4 places of decimal]

(ix) 125 $\times$ 327 = 40875
∴ 0.00125 $\times$ 327 = 0.40875 [5 places of decimal]