Find the sum of the following by making suitable groupings.
38,347,62
38+347+62=347+38+62=347+100=447.
Hence, the required sum of the given number is 447.
Find the sum of the following by making suitable groupings:
129,37,113,421
75,1079,121
Find the sum of the following numbers by suitable arrangements:
911;874;147
742;547;349