This document contains 10 math problems involving addition, subtraction, multiplication, division and identifying place values. The problems include calculating differences, sums, products, quotients and extracting place values from numbers with decimals.

1. 1. 21.42 – 2.1 = _________
2. 17.641 + 328 = __________
3. 7.4 X 0.7 = __________
4. 57 X .04 = _________
5. 3507 ÷ 7 = _________
6. 235 ÷ 5 = _________
7. What is the number in the hundreds place of the following number? 81,412.32 _________
8. What is the number in the thousandths place of the following number? 2,368.981 ______
9. + = __________ (write your answer in simplest form)
10. + = __________ (write your answer in simplest form)