Multiplication

Multiplication

Multiplication LI: To be able to write number sentences to describe an array I have 12 counters. How could I arrange them into equal rows?

What number sentences could you write to go with this array? 2 x 6 = 12 6 x 2 = 12 6 + 6 = 12

2 + 2 + 2 + 2 + 2 + 2 = 12 Can you think of any other ways to arrange the counters? What number sentences could you write to go with this array?

3 x 4 = 12 4 x 3 = 12 4 + 4 + 4 = 12 3 + 3 + 3 + 3 = 12 Could you arrange 20 counters?

What number sentences could you write to go with this array? 2 x 10 = 20 10 x 2 = 20

10 + 10 = 20 2+2+2+2+2+2+2+2+2+2 = 20 OR 5 x 4 = 20 4 x 5 = 20

4 + 4 + 4 + 4 + 4 = 20 5 + 5 + 5 + 5 = 20 Now try doing this on your own. 6 counters 14 counters 15 counters

9 counters 8 counters 18 counters 6 counters 2x3=6 3+3=6

3x2=6 2+2+2=6 14 counters 2 x 7 = 14

7 x 2 = 14 7 + 7 = 14 2 + 2 + 2 + 2 + 2 + 2 + 2 = 14 15 counters 5 x 3 = 15

3 x 5 = 15 3 + 3 + 3 + 3 + 3 = 15 5 + 5 + 5 = 15 9 counters

3x3=9 3+3+3=9 3x3=9 3+3+3=9 8 counters

2x4=8 4+4=8 4x2=8 2+2+2+2 =8 18 counters

2 x 9 = 18 9 x 2 = 18 9 + 9 = 18 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 18

Recently Viewed Presentations

  • MEDLINE Indexing and MTI

    MEDLINE Indexing and MTI

    MEDLINE indexing growth . Here are the numbers for the past 15 years. This graph illustrates the growth of MEDLINE indexing over the past 15 years. In FY 2000, we indexed 442,00 articles from 4,332 MEDLINE journals - this was...
  • Enthalpy Change of formation is the enthalpy change

    Enthalpy Change of formation is the enthalpy change

    Enthalpy Change of formation is the enthalpy change when one mole of a compound is formed from its constituent elements under standard conditions.. Enthalpy Change of reaction . is the enthalpy change that accompanies a chemical reaction in molar quantities...
  • Instructional Design Center Embedding Google Documents in Blackboard

    Instructional Design Center Embedding Google Documents in Blackboard

    into Blackboard, which allows you to update the document in Google Docs . without having to update the item. itself in your course! Obviously, this has the potential of saving a ton of time. Creating a Google Document.
  • Review of Community Care Facilities Ordinance (CCFO) And

    Review of Community Care Facilities Ordinance (CCFO) And

    HOMELESS SERVICES, PUBLIC HOUSING. Turning the tide. LARGE, BROAD-BASED CIVIC GROUPS. Do problem properties, landlords exist? Absolutely—past, present and future. Vulnerable populations are prone to exploitation. ... PowerPoint Presentation Last modified by:
  • Cultivating Skills for problem solving Session1 Teaching the

    Cultivating Skills for problem solving Session1 Teaching the

    What surds have we done? What about is there others???? √2 , triangle side length 1 √8, 4 x 2 , √4 =2= triangle side length 2 √18,9 x 2, √9 =3 triangle side length 3 etc √32 triangle side...
  • Electricity and Electrical Circuits

    Electricity and Electrical Circuits

    Electrical Circuits. How do chargesflow through the components of a circuit? Recall static electricity is a build up of charge until discharge like a spark jumping from hand to metal doorknob or lightning.
  • Folie 1 - uni-heidelberg.de

    Folie 1 - uni-heidelberg.de

    Lebensjahr: - „joint attention", Perspektivenübernahme Reflexion, Ich- oder Selbstbewusstsein „exzentrische Position" (H. Plessner), Fähigkeit zum Überstieg und zur Selbstobjektivierung Schizophrenie als Selbststörung (Parnas, Sass, Stanghellini, Fuchs) Störung des basalen leiblichen Selbsterlebens (Ipseität) → Entfremdung der ...
  • Saving Power and Reducing Environmental Impact with Windows

    Saving Power and Reducing Environmental Impact with Windows

    , Jonathan G. Koomey, Ph.D., Staff Scientist, Lawrence Berkeley National Laboratory and Consulting Professor, Stanford University, February 15, 2007. Electricity usage by servers and equipment doubled between 2000 and 2005. Server power and cooling uses 123 billion kWh/year worldwide. 0.8%...