Reading, Writing, and Comparing Numbers Task Cards, 4.NBT.2 Centers: These 24 task cards are aligned with Common Core Standard 4.NBT.2: Reading, Writing, and Comparing Numbers. Several types of questions help you assess how well your students read, write, and compare numbers. 4.NBT.2. Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to