Analyze the following computations. Explain what is wrong in each case a. 128 +

Question

Analyze the following computations. Explain what is wrong in each case a. 128 + 37 155 87 C. + 38 1115 66 d 57 35 a. Choose the correcta A. A hundreds digit was not regrouped as 1 hundred when the sum of the tens digits was more than 9 B. A tens digit was not regrouped as 1 ten when the sum of the units digits was more than 9 ° C. Partial sums are not in the correct place value position ( D. The sum of the units digits was more than 9 but this was regrouped as 1 hundred and not 1 ten. b. Choose the correct answer below ( A. A hundreds digit was not regrouped as 1 hundred when the sum of the tens digits was more than 9 O B. The sum of the units digits was more than 9 but this was regrouped as 1 hundred and not 1 ten. ( C. Partial sums are not in the correct place value position ( D. A tens digit was not regrouped as 1 ten when the sum of the units digits was more than 9 c. Choose the correct answer below OA. The tens minuend is subtracted from the tens subtrahend Click to select your answer

Explanation / Answer

Answer:

a. (B), (7+8) yields 15, from which 1 has to be carried on to the Ten's Digit.

b. (C), 11 from the sum (8+3) would be placed below 3 and 8 and not adjacent to it, as according to digit placing scheme.

c. (B), (C), trading of one Ten's Digit value to the Unit's Digit would also have resulted in proper subtraction of the Unit's Digit of subtrahend from the Unit's Digit of the minuend.

d. (B), (C), trading of one Ten's Digit value to the Unit's Digit would also have resulted in proper subtraction of the Unit's Digit of subtrahend from the Unit's Digit of the minuend.

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