Tens
4 tens =
Choose 40 on the cloud.
Help the little Christmas gnome jump from cloud to cloud! Build numbers using place values from tens and ones to decimals. Choose the right cloud before the snow carries the gnome to the bottom!
Choose a grade, read BUILD on the panel, and jump through the place values from left to right. Wrong clouds pop away; all clouds keep falling while you jump!
Each grade has its own number range and place-value sequence.
For 47, choose 40 (tens), then 7 (ones).
How to play: Tap the cloud showing the correct tens or ones value. The gnome jumps onto it, and the other clouds pop away. Keep jumping before your cloud reaches the ground. Complete as many numbers as you can!
Learn each place value, then jump on the clouds in the same order to BUILD the number. Every correct jump fills one box in the task panel.
Every two-digit number has tens and ones. The tens tell us how many groups of ten there are. The ones tell us how many extra units there are.
4 tens =
Choose 40 on the cloud.
7 ones =
Choose 7 on the cloud.
2 correct jumps complete one number.
A three-digit number has hundreds, tens, and ones. Each digit tells you how many groups of that place value the number contains.
3 hundreds =
Choose 300 on the cloud.
6 tens =
Choose 60 on the cloud.
5 ones =
Choose 5 on the cloud.
3 correct jumps complete one number.
Practice breaking four-digit numbers into thousands, hundreds, tens, and ones. Start with the largest place value and work to the smallest.
2 thousands =
Choose 2,000 on the cloud.
4 hundreds =
Choose 400 on the cloud.
3 tens =
Choose 30 on the cloud.
7 ones =
Choose 7 on the cloud.
4 correct jumps complete one number.
Build larger numbers using ten thousands, thousands, hundreds, tens, and ones. A digit is worth ten times as much when it moves one place to the left.
4 ten thousands =
Choose 40,000 on the cloud.
5 thousands =
Choose 5,000 on the cloud.
3 hundreds =
Choose 300 on the cloud.
8 tens =
Choose 80 on the cloud.
2 ones =
Choose 2 on the cloud.
5 correct jumps complete one number.
Decimals extend place value to the right of the decimal point. Each place to the right is one tenth the value of the place before it.
6 ones =
Choose 6 on the cloud.
2 tenths =
Choose 0.2 on the cloud.
8 hundredths =
Choose 0.08 on the cloud.
4 thousandths =
Choose 0.004 on the cloud.
4 correct jumps complete one number.