Matt says he can find the sum of 45+50 without rewriting it. Explain how you can solve this problem using mental math.

2 answers:

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Answer:

Step-by-step explanation:

Being a sum of two elements that include units and tens, we can make the sums of the units first, and then add the tens together.

So, if we have 45+50, we can first separate the units: 5 + 0 =5

Then, we separate the tens: 4+5=9

Now, we only join the sums of the units and tens, and that will be the end result. 95

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