Game: FOUR IN A ROW
Aim: To get four symbols in a row
Method:
Choose a square and click on it. Click on the correct answer to the question in the box that appears. If you are right the square is replaced by a tick. Continue until you have won 4 in a row...
john shanburn 😪🤫☣️
"Which fraction is biggest"
4 IN A ROW 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 Four in a row 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.
The game will reinforce the math you have chosen to learn by getting you to match the question to the correct answer.
Notes
- Do the Math lessons for your topic before playing this game
- Wrong answers are ok, you just have to try again until you get them right
- There is help available for all games by clicking the question mark button
UXO * Duck shoot * The frog flies * Pong * Cat and mouse * The beetle and the bee
Rock fall * Four in a row * Sow grow * Choose or lose * Mix and match
How to play 4 in a row to practice
'Number bonds to 100' for 2nd grade
- Select "4 in a row" on the math games selection page.
- Take a quick look at the method text for 4 in a row.
- Click on PLAY to proceed, or change your topic with the CHANGE TOPIC button.
- On the play page you have a grid of 16 pictures (some topic picture are shown multiple times for shorter topics).
- Click on a picture cell.
- The topic question will appear along with a series of possible answers.
- Click the speaker icon to hear any particular answer (Speech enabled browsers only).
- Click the answer that corresponds to the picture question.
- If you are correct, the picture will be replaced by a tick - otherwise, a wrong sound will play.
- Continue matching picture questions to their correct answers until you have completed a line of 4 cells.
- The line can be diagonal as well as horizontal or vertical.
- 4 ticks in a row wins the game.
- Choose an option from the green sign, or click on games to choose a different game.
