Digits, numerals and really big numbers
Answers are for parents and teachers.
1
Write the number 3,450,008 in words and in expanded form.
Three million, four hundred fifty thousand, eight. 3,000,000 + 400,000 + 50,000 + 8.
2
In 9,876,543,210 write the value of the digit 8 and the value of the digit 5.
The 8 is in the hundred millions place: 800,000,000. The 5 is in the hundred thousands place: 500,000.
3
Use the digit cards 2, 7, 0, 5, 9, 1. Write the greatest and the smallest six-digit numbers.
Greatest 975,210; smallest 102,579.
4
Write a numeral with eight digits in which the digit 6 is worth 6,000,000 and the digit 2 is worth 20.
For example 16,000,020 or 46,000,120: 6 in the millions place and 2 in the tens place.
5
Mina says 1,000 thousands make one million. Is he right? Explain.
Yes. 1,000 × 1,000 = 1,000,000.