Should your child add or subtract? This 3rd grade addition and subtraction problems sheet asks that question three times. First, Jane has 45 DVDs and brings home 72 more, so the two amounts are put together. In the second story, one school library has 467 books and another has 901, and your child finds how many more books the bigger one has. Last, Sandy spends 338 of her 670 pennies. Each of these word problems leaves space to write the facts, the number sentence and a full answer sentence at the end. The answers are 117 DVDs, 434 books and 332 pennies, and the second page is an answer key with every step written out.