Answer:Let's arrange the numbers vertically and solve the addition problems: 1) 2.35 + 4.21
2.35 + 4.21 ------ 6.56 2) 5.21 + 2.2
5.21 + 2.20 ------ 7.41 3) 314.124 - 12 This is a subtraction problem, not an addition problem. Let's solve it:
314.124 - 12.000 ------ 302.124 4) 3.44 + 2.991
3.440 + 2.991 ------ 6.431 5) 73.233 + 3
73.233 + 3.000 ------ 76.233 Remember, when adding decimals, it's important to line up the decimal points.