Using groups of 10 and 100 to solve number problems Cover

Using groups of 10 and 100 to solve number problems

This unit contains a range of activities using groups of 10 and 100 to solve two and three digit addition and subtraction problems. In the first 4 activities students must break numbers within a problem into three parts to be solved using groupings of 10 and 100. The following 4 pages ask students to work out number problems in two different ways, noting their working in each case. An example of what is expected is given. In the final activity a banner flying from a plane breaks a problem into three parts to be solved using groupings of 10 and 100.

Years: Year 2 | Pages: 6 | Code: E0224-09

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Jackie Andrews

Jackie Andrews is the principal of St Teresa’s Primary School, Christchurch, New Zealand, where for the last 10 years she has enjoyed teaching and learning alongside students she describes as “the most fabulous little people”. Her classroom experience, combined with her leadership role, continues to shape the practical, supportive resources she creates for busy educators to make teaching manageable, engaging and effective. Her 75+ educational titles across mathematics, English and curriculum planning are widely used in schools. As schools work through ongoing curriculum changes, Jackie is particularly passionate about creating resources that help teachers make sense of new expectations and confidently support learning so that students experience success in the classroom. Outside of education, Jackie’s greatest joy has been watching her own children grow up and begin to spread their wings.

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Suzi de Gouveia

Suzi de Gouveia is an accomplished educator with over 40 years of teaching experience. After spending 18.5 years as principal of St Teresa’s School in Christchurch, New Zealand, she had a brief retirement before realising this lifestyle wasn’t for her. Missing the vibrant energy and daily action of the classroom, she has returned to teaching part-time. Throughout her career, Suzi has developed a wealth of innovative ideas and resources dedicated to enhancing students’ learning. She continues to bring that same passion and expertise to the school environment today.

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