
Cálculo mental
Presentation
•
Mathematics
•
3rd Grade
•
Hard
Andrelina Nunes
FREE Resource
4 Slides • 2 Questions
1
Cálculo mental
By Andrelina Nunes
2
Para conseguires realizar bons cálculos deves estar calmo(a) e usares as diferentes estratégias de cálculo que temos aprendido/trabalhado
Regras:
Máquina de calcular... só no final, para confirmares se acertaste os cálculos!
Importante:
3
Então...
| Resolve com a estratégia da decomposição |
|---|---|
34 + 25 = | |
47 + 39 = | |
4
Indica as adições corretas...
27 + 34 = 62
250+ 60 = 120
64 + 45 = 109
49 + 40 = 89
19 + 19 = 38
250 + 25=275
5
Multiple Choice
Sempre que multiplicamos um número por 10...
acrescentamos dois zeros no produto
acrescentamos três zeros no produto
acrescentamos um zero no produto
6
Draw
Assinala a resposta correta.
Cálculo mental
By Andrelina Nunes
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