Answer: 162.959
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Explanation:
- "Decrease the number by 4 tenths" means we're subtracting off 0.4
- "Increase the number by 8 thousandths" means we're adding 0.008
- "Increase the number by 2 tens" is the same as adding on 2*10 = 20
The changes of this number are
The overall net change is -0.4+0.008+20 = 19.608
We'll be adding this net change to the original number
143.351 + 19.608 = 162.959
This value is exact and hasn't been rounded.
