Compose-Decompose
Break apart the number 13 into two addends.
What is 6 and 7? (or any two numbers that add up to 13)
Show the number 24 in expanded form.
What is 20+4 ?
Round 36 to the nearest ten.
What is 40?
What is 100 more than 93?
What is 193?
Emma read 18 pages on Monday and 24 pages on Tuesday. How many pages did she read in all?
What is 42 pages?
Compose the number 30 using three DIFFERENT numbers.
What is 9, 10, and 11? (or any three numbers that add up to 30)
What number does this make in standard form?
400 + 70 + 8 =
What is 478?
Which symbol makes this true: 45 _ 54?
(>, <, =)
Show the sign on your mini board
What is <?
137 + 419 =?
What is 556?
A zoo has 146 birds and 628 bugs. It also has 258 snakes and 338 fish.
How many birds and bugs are there?
What is 774?
Decompose 68 into two equal parts.
What is 34 and 34?
6 hundreds + 0 tens + 7 ones
What is 607?
Round 55 to the nearest ten.
What is 60?
825+127 ?
What is 952?
Which number rounds to the same TEN as the number 35?
25 28 34 41
What is 41?
How can you make 80 using 18 and another number?
What is 18 and 62?
Write 3 hundreds, 9 tens in standard from.
What is 390?
Which number(s) round to 50?
42 48 51
What are 48 and 51?
What is 23 less than 85?
What is 62?
Dora has 12 red counters. She has 7 more red counters than yellow counters. How many red and yellow counters does Dora have?
What is 17?
Decompose 48 into two numbers where one is twice as big as the other.
What is 32 and 16?
Which number(s) have the SAME value as 315?
A. 300 + 10 + 5
B. three hundred fifty
C. three hundred fifteen
D. three fifteen
E. 3 + 1 +5
Put the LETTER(S)as answer.
What are A and C?
What are THREE numbers that round to 40?
What are 38, 41, 43? (Any other 3 numbers that apply the rule)
165 - 67?
What is 98?
Williams wrote these clues about his secret number.
The number has 5 hundreds. The tens digit is 1 less than 9. The number has more ones than tens.
What is the number in expanded form?
What is 500 + 80 + 9?