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