There were 29 blue cars and 31 red cars on the street. How many cars are on the street? Write the strategy you use to solve the problem

You would add the number of blue Cars to the number of red cars.

Step-by-step explanation:

29

+31

Add 1 to 9 which gives u 10. Put down the zero and carry the 1 put it above the 2. Add 3 to 2 and add the 1 which u put above the 2 and u get 60.

Or, take away 1 from 31 and make it 30. Add that 1 to 29 and make it 30 as well, once u get 30+30 just add and get 60

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step-by-step explanation:

i belive those are the ones that are under 90 degreese.