- The multiplication problem is incorrect. When multiplying 368 by 73, the partial products should be 1104 (368 × 3) and 25760 (368 × 70), which sum to 26864. The final answer shown, 26864, is correct, but the alignment of the second partial product (25760) is wrong; it should be shifted one place to the left to represent multiplication by 70, not 7.
- The addition problem is incorrect. When adding 42.48 and 16.55, the decimal points must be aligned. Adding them correctly gives 59.03, which matches the result shown. However, the carry-over from the hundredths place (8 + 5 = 13) was not properly handled in the written work — the '1' carry should be added to the tenths column, which was done correctly in the final sum, but the intermediate step showing "1 1" above the tenths column is misleading and incorrectly placed.
Parent Tip: Review the logic above to help your child master the concept of math paper.