Question

Four decimal addition and subtraction equations are shown.
A. A vertical equation shows twenty-five point four six zero minus thirteen point four two three equals point zero three seven.
B. A vertical equation shows forty-one point nine seven plus eight point four zero equals forty-nine point one three seven.
C. A vertical equation shows fourteen point seven five three minus two point nine two six equals eleven point eight two seven.
D. A vertical equation shows sixty-seven point five two zero plus three point one seven nine equals seventy point six nine nine.

Which equations are correct? You can select more than one answer.
Click or tap each correct answer.

Equation A

Equation B

Equation C

Equation D

Answer 1

Correct: C and D.

Workings:
A: 25.460 − 13.423 = 12.037 (not 0.037) → incorrect.
B: 41.97 + 8.40 = 50.37 (not 49.137) → incorrect.
C: 14.753 − 2.926 = 11.827 → correct.
D: 67.520 + 3.179 = 70.699 → correct.