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22-12-2021
Mathematics

contestada

Kenya uses mental math to find the sum of 235 and 23. She uses 235, 20, and one other number. What is the missing

number?

3

5

35

58

Respuesta :

coolstick coolstick

22-12-2021

Answer:

3

Step-by-step explanation:

235 + 23

She uses 235, so 23 is left

235 + something + something = 235 + 23

235 + 20 + something = 235 + 23

subtract 235 from both sides

20 + something = 23

20 + something = 20 + 3

the missing number is 3

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