Round to 10, 100 and 1,000 Round to 10, 100 and 1,000

5a. Round these numbers to the nearest 10, 100 and 1,000.

5b. Round these numbers to the nearest 10, 100 and 1,000.

6a. These numbers are being rounded to the nearest hundred. Match them to their rounded value.

6b. These numbers are being rounded to the nearest hundred. Match them to their rounded value.

7a. A 4-digit number has 2 ones. It is rounded to the nearest ten and then halved. The result is 510.What was the original number?

7b. A 4-digit number has 5 ones. It is rounded to the nearest ten and then doubled. The result is 6,420.What was the original number?

8a. Use the digit cards below to make 4-digit numbers to complete the table.

8b. Use the digit cards below to make 4-digit numbers to complete the table.

E

E

E

E

VF VF

VF VF

VF VF

VF VF

E

E

E

E

Three thousand, one hundred and six.

9,815Four thousand, six hundred

and seventy-two

9,975Four thousand and

eighty-seven

One thousand, four hundred and eighty-nine

1,000

1,100

1,094One thousand and

forty-nine

1,141

8,548Eight thousand, five hundred and nine

8,359

8,400

8,500

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5 1 4 8

Number Rounded to the nearest 100 is

5,5008,200

Four thousand, five hundred

7 2 9 3

Number Rounded to the nearest 100 is

Seven thousand, two hundred

9,300Three thousand

A.

B.

C.

A.

B.

C.

Round to 10, 100 and 1,000 Round to 10, 100 and 1,0004a. Find the numbers which round to 9,650 when rounded to the nearest 10.

Explain why the other numbers will not round to 9,650.Use your knowledge of place value.

4b. Find the numbers which round to 6,600 when rounded to the nearest 100.

Explain why the other numbers will not round to 6,600.Use your knowledge of place value.

5a. Tom has crossed the maze below using numbers which round to the nearest 100 to 1,900.Explain where Tom has made a mistake.

5b. Isla has crossed the maze below using numbers which round to the nearest 1,000 to 3,000.Explain where Isla has made a mistake.

6a. Frances is thinking of 2 numbers.

Their difference is 235.

Both numbers have 3 digits and are multiples of 5.

Both numbers round up to 1,000 as the nearest thousand.

Find 3 pairs of numbers Frances could be thinking of.

6b. Amal is thinking of 2 numbers.

Their difference is 250.

Both numbers have 4 digits and 7 ones.

Both numbers round up to 6,000 as the nearest thousand.

Find 3 pairs of numbers Amal could be thinking of.

R R

R R

PS PS

E E

E E

E E

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Nine thousand six hundred and

forty-eight9,638

Nine thousand six hundred and

fifty-nine9,654

6,608Six thousand, five hundred and forty-five

6,660Six thousand, five hundred and fifty-nine

1,861 1,898 1,849 1,909 1,999

1,804 1,888 1,949 1,938 1,848

1,882 1,806 1,950 1,926 1,962

1,967 1,857 1,953 1,875 1,821

1,809 1,957 1,888 1,870 1,954

1,894 1,901 1,999 1,942 1,860

2,100 2,945 3,905 3,831 3,980

2,459 2,199 3,800 2,675 2,500

2,509 2,186 3,999 3,400 2,587

2,517 3,507 3,306 3,328 2,367

3,099 2,501 3,491 2,067 3,892

2,400 3,600 3,697 3,078 2,795

Varied FluencyRound to 10, 100 and 1,000

Varied FluencyRound to 10, 100 and 1,000

Developing1a. A = 2,210; 2,200; 2,000B = 3,020; 3,000; 3,000C = 6,590; 6,600; 7,0002a. Lines connecting 1,206 to 1,200;1,130 to 1,100;1,072 to 1,1003a. 1,2234a. 5,139; 1,953

Expected5a. A = 3,110; 3,100; 3,000B = 9,820; 9,800; 10,000C = 4,670; 4,700; 5,0006a. Lines connecting 1,094 to 1,100;One thousand and forty-nine to 1,000;1,141 to 1,1007a. 1,0228a. 5,481; 8,154; 4,518

Greater Depth9a. A = 8,450; 8,500; 8,000B = 6,060; 6,100; 6,000C = 4,610; 4,600; 5,00010a. Lines connecting 4,495 (represented in Roman Numerals) to 4,500;Four thousand, five hundred and twelve to 4,500;4,556 (represented in Roman Numerals) to 4,60011a. 2,02712a. 2,739; 7,329; 3,792

Developing1b. A = 1,090; 1,100; 1,000B = 3,370; 3,400; 3,000C = 2,140; 2,100; 2,0002b. Lines connecting 2,102 to 2,100; 2,008 to 2,000; 1,955 to 2,0003b. 7,2684b. 2,347; 3,274

Expected5b. A = 9,980; 10,000; 10,000B = 4,090; 4,100; 4,000C = 1,490; 1,500; 1,0006b. Lines connecting 8,548 to 8,500;Eight thousand, five hundred and nine to 8,500;8,359 to 8,4007b. 3,2058b. 7,239; 9,327; 2,973

Greater Depth9b. A = 1,060; 1,100; 1,000B = 9,210; 9,200; 9,000C = 2,670; 2,700; 3,00010b. Lines connecting 4,021 (represented in Roman Numerals) to 4,000;Three thousand, nine hundred and fifty-two to 4,000;3,984 (represented in Roman Numerals) to 4,00011b. 5,16412b. 4,518; 8,154; 1,854

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Reasoning and Problem SolvingRound to 10, 100 and 1,000

Reasoning and Problem SolvingRound to 10, 100 and 1,000

Developing1a. 5,136; 5,144. 2a.

3a. Various answers, for example: 2,005 and 2,405; 2,085 and 2,485; 2,015 and 2,415.

Expected4a. Nine thousand, six hundred and forty-eight; 9,6545a. Explanation that recognises that 1,954 should round up to 2,000 rather than 1,900.6a. Various answers, for example: 550 and 785; 555 and 790; 665 and 900.

Greater Depth7a. Four thousand, three hundred and fifteen; 4,3248a. Explanation that recognises that MMCL is 2,150 and would round up to 2,200. 9a. Various answers, for example: 5,524 and 5,768; 6,164 and 6,408; 6,044 and 6,288.

Developing1b. 7,203; 7,195.2b.

3b. Various answers, for example: 2,504 and 7,854; 7,614 and 7,964; 7,994 and 7,644.

Expected4b. 6,608; Six thousand, five hundred and fifty-nine5b. Explanation that recognises that 3,507 should round up to 4,000 rather than 3,000.6b. Various answers, for example: 5,557 and 5,807; 5,997 and 5,747; 5,707 and 5,957.

Greater Depth7b. Two thousand, six hundred and twenty-four; 2,648 (Roman Numerals).8b. Explanation that recognises that MMMCD is 3,400 and would round down to 3,000.9b. Various answers, for example: 2,530 and 2,835; 3,031 and 3,336; 2,931 and 3,236.

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