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by BlastRoom
Look at a worked make ten, doubles, or break apart step and say what makes it work.
#arithmetic#us_grade_2_math
40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
Sam changes 9 + 4 into 10 + ___. Which number fills the blank?
Maya adds 47 + 35. She gets 70 and 12. What next?
Leo knows 6 + 6 = 12. What is 6 + 7?
Ann adds 30 + 20 and 4 + 5. What is 34 + 25?
Pat solves 13 - 5 as 10 - 2. What is the answer?
Sara changes 9 + 6 into 10 + 5. Why does this work?
Ben adds 8 + 9. He uses 8 + 8 = 16. What next?
Kim breaks 46 + 20 into tens. What is 46 + 20?
Jon breaks 38 into tens and ones. Which shows 38?
Rosa adds 7 + 5, making 10 first. What is left to add?
To add 42 + 39, Mia adds the tens first: 40 + 30 = ___
Ben changes 29 + 39 into 30 + ___. Which number keeps the total the same?
Sam changes 8 + 8 into 10 + ___. Which number fills the blank?
12 + 13 is the same as 12 + 12 + ___
19 + 20 is the same as 19 + 19 + ___
To add 25 + 29, Mia adds the tens first: 20 + 20 = ___
Ben changes 79 + 12 into 80 + ___. Which number keeps the total the same?
Sam changes 9 + 5 into 10 + ___. Which number fills the blank?
To add 22 + 49, Mia adds the tens first: 20 + 40 = ___
Ben changes 59 + 40 into 60 + ___. Which number keeps the total the same?
23 + 24 is the same as 23 + 23 + ___
17 + 18 is the same as 17 + 17 + ___
Sam changes 8 + 3 into 10 + ___. Which number fills the blank?
Sam changes 7 + 7 into 10 + ___. Which number fills the blank?
Sam changes 7 + 9 into 10 + ___. Which number fills the blank?
13 + 14 is the same as 13 + 13 + ___
Sam changes 6 + 8 into 10 + ___. Which number fills the blank?
To add 53 + 45, Mia adds the tens first: 50 + 40 = ___
Ben changes 39 + 31 into 40 + ___. Which number keeps the total the same?
Sam changes 9 + 9 into 10 + ___. Which number fills the blank?
Ben changes 59 + 30 into 60 + ___. Which number keeps the total the same?
Sam changes 7 + 8 into 10 + ___. Which number fills the blank?
To add 23 + 24, Mia adds the tens first: 20 + 20 = ___
To add 37 + 12, Mia adds the tens first: 30 + 10 = ___
3 + 4 is the same as 3 + 3 + ___
To add 21 + 26, Mia adds the tens first: 20 + 20 = ___
To add 55 + 25, Mia adds the tens first: 50 + 20 = ___
8 + 9 is the same as 8 + 8 + ___
To add 67 + 25, Mia adds the tens first: 60 + 20 = ___
9 + 10 is the same as 9 + 9 + ___
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
How Much Longer?
20 questions
