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Substitution – Symbols – Bingo Method
Students should choose nine answers from the grid and place them randomly into a 3x3 square in their book. You may want to pause your display and choose questions according to difficulty during the game. Depending on time, students could win with a line, an X, or a ‘full house’ (all).
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BINGO! 45 54 23 82 37 12 76 25 91 Substitution
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Choose your numbers… 15 −1 7 16 1 −16 2 6 9 −7 −31 13 −11 3 −20
−20 Draw a 3x3 grid in your book.
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Substitute the values for the symbols to find the answer.
=4 =−2 =−5 + = (−2)+(4)= −2+4= 2
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Substitute the values for the symbols to find the answer.
=−3 =6 =0 + + = (−3)+(0)+(6)= −3+0+6= 3
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Substitute the values for the symbols to find the answer.
=3 =8 =−2 + + = (−2)+(3)+(8)= −2+3+8= 9
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Substitute the values for the symbols to find the answer.
=6 =−2 =−4 + + = (−4)+(−2)+(6)= −4−2+6=
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Substitute the values for the symbols to find the answer.
=4 =−3 =−5 + − = (−5)+ −5 −(−3)= −5−5+3= −7
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Substitute the values for the symbols to find the answer.
=−3 =6 =0 − + = (6)−(−3)+(6)= 6+3+6= 15
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Substitute the values for the symbols to find the answer.
=3 =8 =−2 − 3 = (8)−(9)= 8−9= −1
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Substitute the values for the symbols to find the answer.
=−4 =2 =5 + 2 − = (2)+ −8 −(5)= 2−8−5= −11
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Substitute the values for the symbols to find the answer.
=8 =−2 =−4 2 + 3 = (−4)+(−12)= −4−12= −16
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Substitute the values for the symbols to find the answer.
=−4 =2 =5 2 − + = (10)− −4 +(2)= 10+4+2= 16
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Substitute the values for the symbols to find the answer.
=8 =−2 =4 2 − 2 = (−4)−(16)= −4−16= −20
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Substitute the values for the symbols to find the answer.
=3 =−6 =−1 2 + 3 − = (−2)+(9)−(−6)= −2+9+6= 13
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Substitute the values for the symbols to find the answer.
=8 =−2 =5 − 2 − = (8)−(−4)−(5)= 8+4−5= 7
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Substitute the values for the symbols to find the answer.
=3 =−6 =−1 − + 2 = (−6)−(−1)+(6)= −6+1+6= 1
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Substitute the values for the symbols to find the answer.
=3 =−6 =2 4 − − 2 = (−24)−(3)−(4)= −24−3−4= −31
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Substitute the values for the symbols to find the answer.
=4 =−6 =2 2 − − = (4)−(−6)−(4)= 4+6−4= 6
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tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!? Any feedback would be appreciated . Please feel free to
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