class: center, middle, inverse, title-slide # Calcul Mental ### Vincent Pitou ### LFM --- class: inverse, center, middle # Questions Multiplications par 98 5 questions 10 secondes par question --- # Question 1 .pull-left[# `$$A$$` #$$3 \times 98$$ ] .pull-right[# `$$B$$` #$$98 \times 4$$ ] ??? .pull-left[294] .pull-left[392] --- # Question 2 .pull-left[# `$$A$$` #$$8 \times 98$$ ] .pull-right[# `$$B$$` #$$6 \times 98$$ ] ??? .pull-left[784] .pull-left[588] --- # Question 3 .pull-left[# `$$A$$` #$$98 \times 2$$ ] .pull-right[# `$$B$$` #$$9 \times 98$$ ] ??? .pull-left[196] .pull-left[882] --- # Question 4 .pull-left[# `$$A$$` #$$98 \times 4$$ ] .pull-right[# `$$B$$` #$$98 \times 7$$ ] ??? .pull-left[392] .pull-left[686] --- # Question 5 .pull-left[# `$$A$$` #$$6 \times 98$$ ] .pull-right[# `$$B$$` #$$98 \times 2$$ ] ??? .pull-left[588] .pull-left[196] --- class: inverse, center, middle # RĂ©ponses --- .pull-left[# `$$A$$` ##$$3 \times 98= 294$$ ##$$8 \times 98= 784$$ ##$$98 \times 2= 196$$ ##$$98 \times 4= 392$$ ##$$6 \times 98= 588$$ ] .pull-right[# `$$B$$` ##$$98 \times 4= 392$$ ##$$6 \times 98= 588$$ ##$$9 \times 98= 882$$ ##$$98 \times 7= 686$$ ##$$98 \times 2= 196$$ ]