[MA2019] (4) 1 :
1. Interpret and write equations for multiplicative comparisons.
[MA2019] (4) 2 :
2. Solve word problems involving multiplicative comparison using drawings and write equations to represent the problem, using a symbol for the unknown number.
[MA2019] (4) 3 :
3. Determine and justify solutions for multi-step word problems, including problems where remainders must be interpreted.
a. Write equations to show solutions for multi-step word problems with a letter standing for the unknown quantity.
b. Determine reasonableness of answers for multi-step word problems, using mental computation and estimation strategies including rounding.
[MA2019] (4) 11 :
11. Find the product of two factors (up to four digits by a one-digit number and two two-digit numbers), using strategies based on place value and the properties of operations.
a. Illustrate and explain the product of two factors using equations, rectangular arrays, and area models.