Why parents choose Splash Math for their fourth graders?
Intelligently adapts to the way each child learns
Get coins for each correct answer and redeem coins for virtual pets
Monitor progress with iPhone app, weekly emails and detailed dashboards
Multiply 2 Digit by 2 Digit (Numbers up to 70)- 4th Grade Math
In the fourth grade, students are required to multiply two 2-digit numbers. Students can continue to use the same method they had used to multiply 2-digit number by a 1-digit number by making use of area models (distributive property of multiplication). For example, 75 x 41 can be multiplied as (70 x 4) + (70 x 1) + (5 x 4) + (5 x 1). This method of multiplying should acts as a precursor to the standard algorithm. It is important for the students to understand how a particular method works. Fluency with place value (expanded forms), distributive property of multiplication and multiplying multiples of 10 will be of great help here. The 2-digit numbers in this worksheet are restricted to those less than 70.
Common Core Alignment
4.NBT.5Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.