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ADD AND SUBTRACT WITHIN 100 REVIEW

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  • How many rows would we need to move down the hundreds chart to solve this equation? 18+50=?
    five
  • 61-20=?
    41
  • 15+6=?
    21
  • 40-30=____ 30+____=40
    10
  • 53-20=?
    33
  • BONUS!! If we wanted to solve this equation using a hundreds chart, explain how we would do that. 58+30=?
    Start at 53, move down 3 rows because there are 3 groups of 10 in the number 30.
  • BONUS!! If we wanted to solve this equation using a hundreds chart, explain how we would do that. 82-20=?
    start at 82, move up 2 rows because there are 2 tens in the number 20. Land on 62
  • 19+10=?
    29
  • What is TEN more than 34?
    44
  • 42,43, ____
    44
  • What is ONE more than 89?
    90
  • 56+7=?
    63
  • 35+40=?
    75
  • 90-___ =70 70+____=90
    20
  • Which direction do we move on the hundreds chart is we want to find ONE LESS?
    left
  • 80-10=?
    70
  • How many rows would we need to move up the hundreds chart to solve this equation? 37-10
    one
  • 60-___=30 30+___=60
    30
  • Which direction do we move on the hundreds chart is we want to find TEN LESS?
    up
  • Which direction do we move on the hundreds chart is we want to find TEN MORE?
    down
  • 28+20=?
    48
  • 34+8=?
    42
  • _____, 80, 81
    79
  • What is ONE less than 53?
    52
  • What is TEN less than 12?
    2
  • Which direction do we move on the hundreds chart is we want to find ONE MORE?
    right
  • 30+30=?
    60
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