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Math Focus: Number and Operations
Topic: Compare and Add and Subtract Decimals
MA.4.NSO.1.5 Plot, order and compare decimals up to the hundredths. Example: The numbers 3.2; 3.24 and 3.12 can be arranged in ascending order as 3.12; 3.2 and 3.24.
MA.4.NSO.2.6 Identify the number that is one-tenth more, one-tenth less, one-hundredth more and one-hundredth less than a given number.
Example: One-hundredth less than 1.10 is 1.09. Example: One-tenth more than 2.31 is 2.41.
MA.4.NSO.2.7 Explore the addition and subtraction of multi-digit numbers with decimals to the hundredths.
MA.4.FR.1.1 Model and express a fraction, including mixed numbers and fractions greater than one, with the denominator 10 as an equivalent fraction with the denominator 100.
MA.4.FR.1.2 Use decimal notation to represent fractions with denominators of 10 or 100, including mixed numbers and fractions greater than 1, and use fractional notation with denominators of 10 or 100 to represent decimals.
MA.4.FR.2.3 Explore the addition of a fraction with denominator of 10 to a fraction with denominator of 100 using equivalent fractions.
Example: 9/100 + 3/10 is equivalent to 9/100 + 30/100 which is equivalent to 39/100 .
MA.4.M.2.2 Solve one- and two-step addition and subtraction real-world problems involving money using decimal notation. Example: An item costs $1.84. If you give the cashier $2.00, how much change should you receive? What coins could be used to give the change? Example: At the grocery store you spend $14.56. If you do not want any pennies in change, how much money could you give the cashier?