Represent equal groups in rows and columns.
Arrays and Repeated Addition is the game. Represent equal groups in rows and columns. Watch shows 4 + 4 + 4 = 12, then 5 + 5 = 10, then 3 + 3 + 3 + 3 = 12, then 2 + 2 + 2 = 6. How many in all? Each row is one addend. Tap the total. After the tap, the rows hop, and the line shows 3 rows and 4 columns. Try it. Then six scored arrays. Score, Streak, and hearts start after Try it. Built for 2nd grade.
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How to Play Arrays and Repeated Addition
Watch
Watch. Represent equal groups in rows and columns. 4 + 4 + 4 = 12, then 5 + 5 = 10, then 3 + 3 + 3 + 3 = 12, then 2 + 2 + 2 = 6. How many in all?
Try it
Try it. Represent equal groups in rows and columns. How many in all? Tap the total. 4 + 4 + 4 = 12. 5 + 5 = 10. The equation stays until you go on. The hearts stay hidden through Try it.
Arrays and Repeated Addition
Arrays and Repeated Addition. Represent equal groups in rows and columns. Six new arrays. How many in all? 3 + 3 + 3 + 3 = 12. 2 + 2 + 2 = 6.
Score
A finished array adds Score and Streak. The wrong total clears the Streak and costs a heart. Three misses and the run is Done. Again starts over. Best is saved. Sound and Mute sit on the bar. A higher Score is a New best.
Key Features
Represent equal groups in rows and columns.
Watch. 4 + 4 + 4 = 12. 5 + 5 = 10. 3 + 3 + 3 + 3 = 12. 2 + 2 + 2 = 6. How many in all? Tap the total. Try it. Represent equal groups in rows and columns.
4 + 4 + 4 = 12
How many in all? Three rows of 4. The addition is 4 + 4 + 4. Tap 12. The rows hop. The line shows 3 rows and 4 columns.
5 + 5 = 10
How many in all? Two rows of 5. Tap 10. 2 rows and 5 columns. 10 is the total.
3 + 3 + 3 + 3 = 12
How many in all? Four rows of 3. Tap 12. 4 rows and 3 columns. 2 + 2 + 2 = 6 is 3 rows and 2 columns.
Score and Streak
Score and Streak wait until after Watch and Try it. A finished array adds Score and grows the Streak. The wrong total shakes the board, clears the Streak, and costs a heart. Three misses and the run is Done.
Best
Best is kept on this device. A higher Score at the end is a New best. Again starts a new run. Sound and Mute sit on the bar.
What is Arrays and Repeated Addition?
Arrays and Repeated Addition is a 2nd grade game. Represent equal groups in rows and columns. Watch 4 + 4 + 4 = 12, 5 + 5 = 10, 3 + 3 + 3 + 3 = 12, and 2 + 2 + 2 = 6. How many in all? Try it.
Why Play Arrays and Repeated Addition?
Rows
Represent equal groups in rows and columns. Each row is one addend. 4 + 4 + 4 = 12 is 3 rows and 4 columns.
How many in all?
How many in all? Tap the total. 5 + 5 = 10. 2 + 2 + 2 = 6. The rows hop when the total is right.
A miss you can feel
The wrong total shakes the board and puts the array back. A finished array adds Score.
Frequently Asked Questions
How do I represent equal groups in rows and columns?
Watch 4 + 4 + 4 = 12, 5 + 5 = 10, 3 + 3 + 3 + 3 = 12, and 2 + 2 + 2 = 6. Then Try it. How many in all? Each row is one addend. Tap the total.
What is 4 + 4 + 4?
12. How many in all? Three rows of 4. 3 rows and 4 columns. The total is 12.
What is 5 + 5?
10. How many in all? Two rows of 5. 2 rows and 5 columns.
What do rows and columns mean?
A row goes across. A column goes down. 4 + 4 + 4 = 12 is 3 rows and 4 columns. 2 + 2 + 2 = 6 is 3 rows and 2 columns.
How does Score work?
Score and Streak start after Watch and Try it. A finished array adds Score. The Streak makes the next array worth more. The wrong total clears the Streak. Best is saved. A higher Score at the end is a New best. Again starts a new run. Three misses and the run is Done.
Where are Sound and Mute?
Sound and Mute sit on the bar. Tap the button to switch.
Who is Arrays and Repeated Addition for?
Arrays and Repeated Addition is for 2nd grade. Represent equal groups in rows and columns.