Answer:
A, B and D
Step-by-step explanation:
(a)1.7+9+6.41
We annex zeros as follows:
(b)0.03+12
We annex zeros as follows:
(c)19.3+0.3
Since there is 1 digit after the decimal point in each there is no need to annex zeros.
(d)1+2.46+17.44
We annex zeros as follows:
(e)0.68+12.44
Since there are 2 digits after the decimal point in each there is no need to annex zeros.
A, B and D are the correct choices.