Printing: use your browser's print (Ctrl+P / ⌘P). The whole week is 12 A4 sheets (6 pieces of paper double-sided) — the same content as the single days.

10 minutes, then stop

Maths B (mixed review)Fri 25 September1 / 4

September mixed review

Nothing new — this month's work comes back

Name Date

Question 1 is already done for you

Write 'seven hundred million' in digits.

700 | 000 | 000 → 700,000,000

Your turn from here

2Work out 294 ÷ 6.

3Write 'six hundred thirty million' in digits.

Extra · you may skip this

10 minutes, then stop

Maths B (mixed review)Fri 25 September2 / 4

September mixed review　+　corrections

Division with a remainder, and finding the □

Name Date

4Work out 428 ÷ 5.

There is a remainder.

5Find □ in　□ x 7 = 385

6What is one tenth of 8 billion?

Long division, once more

7Work out 672 ÷ 3 in long division.

10 minutes, then stop

Maths B (mixed review)Fri 25 September3 / 4

September mixed review　+　corrections

Name Date

8Work out 905 ÷ 7 in long division. Write the remainder too.

9A billion is how many times ten million?

Each place to the left was ten times.

Big numbers, and finding □

10Find □ in　□ ÷ 4 = 125

10 minutes, then stop

Maths B (mixed review)Fri 25 September4 / 4

September mixed review　+　corrections

Name Date

11Write 'three trillion five hundred billion' in digits.

12There are 174 stickers, 8 to a person. How many people get some, and how many stickers are left?

Corrections notebook

13Pick two questions you got wrong in September and do them again.

Solve them again — do not copy.

10 minutes, then stop

Month round-up + correctionsSun 27 September1 / 4

September round-up　+　three costumes

Three questions from this month's costumes, with different numbers

Name Date

1 · This month's check (3 questions)

Mark it yourself. No score is recorded anywhere.

1Write 'four hundred fifty million' in digits.

2Work out 531 ÷ 9.

3100 sweets shared equally between 7 children. How many each, and how many left?

10 minutes, then stop

Month round-up + correctionsSun 27 September2 / 4

September round-up　+　three costumes

Name Date

2 · This month's costumes — one question from each

Pokémon: experience　everyday: the electricity bill　geography: population　basketball: teams　IT: file sizes　food: biscuits

One question from each of the three below.

4Pokémon — 84,000 experience shared between 6. How many each?

5Everyday — a month's electricity was 8,400 yen. Over 30 days, how much per day?

6IT — 1 MB = 1000 KB. How many MB is 9000 KB?

10 minutes, then stop

Month round-up + correctionsSun 27 September3 / 4

September round-up　+　three costumes

Name Date

3 · A little more

7Write 'two hundred and four million' in digits.

Watch the places that take a zero.

8Work out 756 ÷ 4 in long division.

9Work out 620 ÷ 9 in long division. Write the remainder too.

10 minutes, then stop

Month round-up + correctionsSun 27 September4 / 4

September round-up　+　three costumes

Name Date

4 · Undo it and check

10Find □ in　□ x 6 = 342

Undoing a multiplication is a division.

11Written in digits, how many zeros does six trillion have?

5 · This month's corrections

12Redo anything you missed in part 1.

20 minutes, then stop

Stretch (not recorded)From Sun 27 September, any time1 / 4

Stretch — four stages

Not recorded. Getting it wrong is fine. One sheet, one stage

Name Date

The level-up sheet

One level up. Every stage hides a number you do not need. Circle it.

Stage 1 · Social studies — where does the water come from?

Source 1 · a city (made-up numbers)	Number
Water the plant sent out in a week (7 days)	560 million L
Water stored in the dam	3 billion L
Primary schools in the city	18

Question 1 is already done for you

The plant in the next town sent out 49 million L in a week (7 days). How much per day?
49 million is 49 blocks of one million.　49 ÷ 7 = 7 → 7 blocks of one million → 7 million L

2How much water did this city's plant send out per day?

How many blocks of ten million make 560 million?

3With no rain, using the same as question 2 every day, about how many days will the dam last? Choose one.
A　about 4 days　　　B　about 40 days　　　C　about 400 days

Ask the same about 3 billion: how many blocks of ten million?

20 minutes, then stop

Stretch (not recorded)From Sun 27 September, any time2 / 4

Stretch — four stages

Name Date

Stage 2 · Science — where the rain goes

Source 2

A school playground's rainwater runs into 9 drains, the same amount into each. It was 18 °C that day.

Source 3 · Rain on the playground, hour by hour (made-up numbers)

4In which hour did the most rain fall? How many litres?

5In that hour, how many litres ran into one drain?

6One drain takes at most 6,000 L an hour; any more and a puddle forms. In which hours did a puddle form? Choose all.
hour　1　　2　　3　　4　　5　　6

You could compare with 9 × 6,000.

20 minutes, then stop

Stretch (not recorded)From Sun 27 September, any time3 / 4

Stretch — four stages

Name Date

Stage 3 · Social studies — where the rubbish goes

Source 4

At a city's incinerator, burnt rubbish becomes ash weighing ¹⁄₁₀ as much, which goes to a landfill.

Source 5 · this city's rubbish (made-up numbers)	Number
Rubbish burned in a year	600 million kg
Ash the landfill can still take	420 million kg
Rubbish trucks	36

7How many kg of ash are made in a year?

8One year, 70 million kg of ash were made. How much rubbish was burned that year?
¹⁄₁₀ of □ = 70 million kg

Undoing a tenth is ten times.

9If the same ash as in question 7 is made every year, in how many years will the landfill be full?

Count both 420 million and 60 million in blocks of ten million.

20 minutes, then stop

Stretch (not recorded)From Sun 27 September, any time4 / 4

Stretch — four stages

Name Date

Stage 4 · Social studies — shelters ready for an earthquake

Source 6 · shelters in a town	Holds	From the sea
East Primary School	480	2 km
West Junior High	630	5 km
Community hall	95	1 km

A made-up town. It plans 3 L of water per person per day at its shelters.

10The 630 people at West Junior High go into 7 classrooms, the same number in each. How many in one classroom?

11Each room in the hall holds up to 8 people. How many rooms are needed for all 95?

The people left over need a room too.

12East Primary has 4,320 L of water. If 480 people shelter there, how many days of water is that? Choose, and write one sentence on why.
A　2 days　　　B　3 days　　　C　9 days

Hint: first one day's water (480 × 3). Then keep adding it — day 1, day 2 …