Subtract three-digit numbers using place-value models and strategies.
Subtract Three-Digit Numbers is the game. Subtract three-digit numbers using place-value models and strategies. Watch shows 359 − 125 = 234, then 569 − 162 = 407, then 425 − 158 = 267, then 531 − 185 = 346. Tap the ones, then the tens, then the hundreds. When a place does not have enough, tap the next place first. A ten breaks into 10 ones. A hundred breaks into 10 tens. Try it. Subtract three-digit numbers using place-value models and strategies. Then six scored differences. Score, Streak, and hearts start after Try it. Built for 2nd grade.
More like this
How to Play Subtract Three-Digit Numbers
Watch
Watch. Subtract three-digit numbers using place-value models and strategies. 359 − 125 = 234, then 569 − 162 = 407, then 425 − 158 = 267, then 531 − 185 = 346. The ones leave first. A gold bundle moves in when a place does not have enough.
Try it
Try it. Subtract three-digit numbers using place-value models and strategies. Tap the ones, then the tens, then the hundreds. Tap a ten or a hundred first when that place does not have enough. 359 − 125 = 234. 425 − 158 = 267. The difference stays until you go on. The hearts stay hidden through Try it.
Subtract Three-Digit Numbers
Subtract Three-Digit Numbers. Subtract three-digit numbers using place-value models and strategies. Six new differences. Tap ones, tens, and hundreds. 531 − 185 = 346.
Score
A finished difference adds Score and Streak. A tap in the wrong place 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
Subtract three-digit numbers using place-value models and strategies.
Watch. 359 − 125 = 234. 569 − 162 = 407. 425 − 158 = 267. 531 − 185 = 346. Tap the ones, then the tens, then the hundreds. Try it. Subtract three-digit numbers using place-value models and strategies.
359 − 125 = 234
9 ones have enough for 5. 5 tens have enough for 2. 3 hundreds have enough for 1. The difference is 234. No place needs an exchange.
425 − 158 = 267
5 ones are not enough for 8. Tap a ten. It breaks into 10 gold ones, and 7 ones stay after 8 leave. 1 ten is not enough for 5. Tap a hundred. It breaks into 10 tens, and 6 tens stay after 5 leave. 3 hundreds leave 2. The difference is 267.
Score and Streak
Score and Streak wait until after Watch and Try it. A finished difference adds Score and grows the Streak. A tap in the wrong place 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 Subtract Three-Digit Numbers?
Subtract Three-Digit Numbers is a 2nd grade game. Subtract three-digit numbers using place-value models and strategies. Watch 359 − 125 = 234, 569 − 162 = 407, 425 − 158 = 267, and 531 − 185 = 346. Try it. The blocks leave place by place.
Why Play Subtract Three-Digit Numbers?
Hundreds, tens, and ones
Subtract three-digit numbers using place-value models and strategies. Flats, rods, and squares show each place.
359 − 125 = 234
359 − 125 = 234 needs no exchange. 425 − 158 = 267 and 531 − 185 = 346 break a ten, then a hundred.
A miss you can feel
A tap in the wrong place shakes the board and puts the blocks back. A finished difference adds Score.
Frequently Asked Questions
How do I subtract three-digit numbers using place-value models and strategies?
Watch 359 − 125 = 234, 569 − 162 = 407, 425 − 158 = 267, and 531 − 185 = 346. Then Try it. Tap the ones, then the tens, then the hundreds. Tap the next place first when there are not enough.
What is 359 − 125?
234. 9 ones leave 4. 5 tens leave 3. 3 hundreds leave 2. No place needs an exchange.
What is 425 − 158?
267. 5 ones are not enough, so a ten breaks into 10 ones. 1 ten is not enough, so a hundred breaks into 10 tens. 2 hundreds stay.
What is 531 − 185?
346. 1 one is not enough for 5, so a ten breaks. 2 tens are not enough for 8, so a hundred breaks. 3 hundreds stay.
How does Score work?
Score and Streak start after Watch and Try it. A finished difference adds Score. The Streak makes the next difference worth more. A tap in the wrong place 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 Subtract Three-Digit Numbers for?
Subtract Three-Digit Numbers is for 2nd grade. Subtract three-digit numbers using place-value models and strategies.