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14 3 Mental Math Strategies
Dear Family,
Vocabulary to Practice
In this chapter, your child will learn to add and subtract NFOUBMMZVTJOHEJGGFSFOUTUSBUFHJFTJODMVEJOH % BEEJOHPSTVCUSBDUJOHPOFT % BEEJOHPSTVCUSBDUJOHUFOT % doubles facts
5 + 5 = 10 5 + 5 is a doubles fact. 7+6=6+6+1 = 12 + 1 = 13 7 + 6 is a doubles plus 1 fact.
% doubles plus one facts % SFDBMMJOHOVNCFSCPOET
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Activity
Mental Math Genius
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8+5=?
School-to-Home Connections
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Conexiones entre
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Capítulo
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Estrategias para el cálculo mental
Estimada familia:
Vocabulario para practicar
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5 + 5 = 10 5 + 5 es una suma de dobles. 7+6=6+6+1 = 12 + 1 = 13 7 + 6 es una suma de dobles más 1.
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Genio del cálculo mental
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8+5=?
32 1BSchToHome_NEW.indd 32
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Actividad
Math in Focus Grade 1
3/26/09 5:04:09 PM