Question

Add: (a) 1 upon 10+ 4 upon 5​

Answer 1

Answer:

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Answer 2

Answer:

64

Step-by-step explanation:

1 upon to 10 means = 1+2+3+4+5+6+7+8+9+10 that is 55

Same as 4 upon to 5 = 4+5 that is 9

And by adding 55 and 9 we get 64.