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SOW GROW
PLAY
Look at and listen to each math question. Click/tap on the pot that has the right answer. Expand answers if necessary using the magnifying glass buttons.
Correct answers water the seedling which grows, blooms and the flower is cut for the vase. Continue until you have collected the given number of flowers.
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Game: SOW GROW

Aim: To grow and gather sunflowers

Method:
Look at and listen to each math question. Click/tap on the pot that has the right answer. Expand answers if necessary using the magnifying glass buttons.
Correct answers water the seedling which grows, blooms and the flower is cut for the vase. Continue until you have collected the given number of flowers.

Number bonds to 100
      
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SOW GROW game to practice
'Number bonds to 100' for 2nd grade

Addition - Number bonding - Number bonds to 100

Number bonding is a method for recognizing common combinations of numbers that add to a specific target number. In this topic we are looking at pairs of numbers that bond to 100. So, an obvious pair you might think of is:

50 + 50 = 100

Obviously there are many other multiples of 10 that also bond to 100:

40 + 60 = 100

80 + 20 = 100

10 + 90 = 100

One thing you will notice with the multiples of 10 is that we could knock off the final zero and think about number pairs that bond to 10. You will also notice that we can play around with these bonds to derive related facts - for instance:

30 + 70 = 100

100 = 70 + 30

100 - 70 = 30

100 - 30 = 70

Now, let's think about numbers which aern't multiples of 10 like 34 or 59. One way to quickly get their number bond pair to 100 is to work the units first and then figure out the tens. So, for 34, take the unit 4, bond it to 10 with a unit 6. This pushes the tens 3 to a tens 4. Now figure the tens bond of 4 to make 100 which is 6. So the answer is 66.

34 + ▢ = 100

30 + 4 + ▢ + 6 = 100

30 + 4 + 60 + 6 = 100

So, ... 34 + 66 = 100

Consider another example, say 22:

22 + ▢ = 100

20 + 2 + ▢ + 8 = 100

20 + 2 + 70 + 8 = 100

So, ... 22 + 78 = 100

So knowing your number bonds, or knowing how to quickly work out number bonds can massively speed up your mental arithmetic.

With our Sow grow math game you will be practicing the topic "Number bonds to 100" from 2nd grade / Addition / Number bonding. The math in this game consists of 22 questions that ask you to identify pairs of numbers that sum to a total of 100.

Match math questions to the right answer to grow flowers...relaxed game with nice outcome

Large thumbnail for math game Sow grow

Sow grow is a gentle game that concentrates on your ability to answer math questions. The game itself is very simple to play and does not require manual dexterity or fast reaction times. You are growing sunflowers in pots on a window sill. When you answer questions correctly you get to pick a sunflower to put in the vase. When the vase is full, you have completed the game.

Notes

  1. Sow grow is a one player game to learn or revise math.
  2. Sow grow is a timed game - play a few times, set a personal best time and try to get on the leaderboard!
  3. It is best to go through the sample questions in the topic lesson before you attempt this game.
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How to play Sow grow to practice
'Number bonds to 100' for 2nd grade

Free Math Games screenshot of Sow grow game for learning and practicing elementary math

  1. Select the Sow grow game from the "Games" selection page.
  2. On the settings page there are brief instructions on how to play.
  3. Click on PLAY to start the game.
  4. The game is timed - the clock starts when you enter the play screen.
  5. The first seeds are planted then the first math question is revealed above the pots.
  6. If you have robot speech enabled, the robot voice will speak the question.
  7. Click / tap on the speaker button at top right if you want to hear the audio repeated.
  8. Click / tap on the question box to expand the question and hear the audio repeated.
  9. Click / tap on the pot that correctly answers the question.
  10. If your answer is correct the seedling will grow into a flower which is then cut and put in the vase.
  11. If your answer is wrong, the audio will play again, and an arrow will indicate the correct answer. Click the close button at top right to continue.
  12. The number of questions you need to answer is in the count box at top right above the clock.
  13. There are occasional "flower bonuses" available which will take 5 seconds off your time.
  14. A leaderboard records the 10 fastest times for each topic. Click the gold star on the vase to see the leaderboard.
  15. If you get one of the 10 fastest times, you are offered the chance to enter your name into the leaderboard, or you can cancel if you are not interested.
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