Here are some ideas of what you can be doing at home to support your children in mathematics.
Have students practice counting and representing objects 0 - 20. You can use any household object, like cheerios, beans, socks. Say show me four. Let child show you, then say, can you show me four a different way? Encourage them to show 4 by making 2 groups of 2 or 1 group of 3 and 1 group of 1. Do this for numbers up to 20.
703 – 235 = 468
a. Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 x (1/100) + 2 x (1/1000).
b. Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.