Addition and
subtraction
Rounding off numbers
Number forms
Comparing numbers
Ten times greater
100

What is 982,849-199,498?

The answer is 783,351.

100

Round off 51,487 to the nearest ten thousand.

The answer is 50,000.

100

What is the word form of 54,673?

The word form is fifty-four thousand, six hundred and seventy three. 

100

Compare 56,729 and 78,925.

78,925>56,729

100

How much tens are in 40 ones?

There are 4 tens in 40 ones.

200

What is 2,844,622- 1,829,793?

The answer is 1,014,829.

200

Round off 60,394 to the nearest ten.

The answer is 60,390.

200

Which form is this? (50,000+6,000+700+60+3)?

This form is the expanded form of 56,763.

200

Compare 921,371 and 921,217

921,371>921,217

200

How many tens are in 400?

There are 40 tens in 400.

300

What is 7,710,271+ 1,732,729?

The answer is 9,443,000.

300

Round off 67,803 to the nearest hundred.

67,803 rounded off to the nearest hundred is 67,800

300

What is the standard form of 60,000+7,000+800+70+1?

The standard form is 67,871

300

Compare 8913 and 5672

8913>5672

300

Guess the number. I have 6 hundreds, 5 tens, 9 ten thousand, 5 thousand and 3

The number is 95,653

400

What is 3,832,283 + 5,382,512?

The answer is 9,214,795.

400

Round off 89,753 to the nearest hundred.

89,753 rounded off to the nearest hundred is 89,800

400

Write the expanded form of 67,890

The answer is 60,000+7,000+800+90

400

Compare 88,207 and 88,207

88,207=88,207

400

Guess the number. I have 3 ones and the number in hundreds is 2 x the ones. I have 4 tens as well.

The number is 643.

500

What is 6,632,922+2,257,196?

The answer is 8,890,118. 

500

Round off 987,393 to the nearest thousand (challenge)

987,393 rounded off to the nearest thousand is 987,000.

500

What is the expanded form of 235,876? (challenge)

The expanded form is 200,000+30,000+5,000+800+70+6.

500

Compare 69,125 and 78,026

78,026>69,125

500

How many ones are in 5 tens?

There are 50 ones in 5 tens.