Multiplication

During our Multiplication Unit (10/10-11/3) we will learning how to multiply 2 digits by 2 digits and how to take the number apart to multiply by using partial products and area models.

Our learning objectives during this unit are:

  • 4.4(B) determine products of a number and 10 or 100 using properties of operations and place value understandings.
  • 4.4(C) represent the product of 2 two-digit numbers using arrays, area models, or equations, including perfect squares through 15 by 15.
  • 4.4(D) use strategies and algorithms, including the standard algorithm, to multiply up to a four-digit number by a one-digit number and to multiply a two-digit number by a two-digit number. Strategies may include mental math, partial products, and the commutative, associative, and distributive properties.
  • 4.4(G) round to the nearest 10, 100, or 1,000 or use compatible numbers to estimate solutions involving whole numbers.
Basic multiplication _ Multiplication and division _ Arithmetic _ Khan Academy-mvOkMYCygps_x264.mp4
Multiplying_ using an area model _ Multiplication and division _ Arithmetic _ Khan Academy-vbGwcvXgDlg_x264.mp4
Multiplying 10s _ Math _ 4th grade _ Khan Academy-uHHnwafYivk_x264.mp4
Multiplying_ 2 digit numbers _ Multiplication and division _ 4th grade _ Khan Academy-DaQlieZH1kk_x264.mp4