Recall the number of tens and hundreds in 100s and 1000s.
Recall groupings of twos, threes, fives, and tens that are in numbers to 100 and the resulting remainders.
Find out how many ones, tens, hundreds and thousands are in all of a whole number.
Find the number of tenths, hundredths, and one–thousandths in numbers of up to three decimal places.
Number Framework Stages 5-7
“Mrs Hau collects $10 from each of her students for a visit to the zoo. She has a total of $180.
How many students are going to the zoo?”
Give the students $180 as a $100 note and eight $10 notes and have them break the $100 note down into 10 $10 notes. Discuss the answer. Record $180 = 18 x $10 on the board or modelling book.
Repeat for $230, $140, $200, $160 ... Encourage the students to get the answer before modelling the problem with the money if they can.
Repeat by selecting numbers that are too large to model on materials. For example $980. Discuss the pattern that has emerged. Record $980 = 98 x $10 on the board or modelling book.
Repeat for $860, $900, $340, $660 ...
Activity
Reverse the process. Record 19 x $10 = on the board or modelling book and discuss what it equals. Model with $10 notes if needed. Record 19 _ $10 = $190.
Repeat for 13 x $10, 15 x $10, 78 x $10, 34 x $10, 77 x $10 ...
Repeat for 273 x $10, 615 x $10, 798 x $10, 304 x $10, 730 x $10 ...
Activity
“Mrs Wallace’s class is going on a trip that costs $100 per student. Mrs Wallace collects $1,600.
How many $100 notes does Mrs Wallace have?” The students model $1,600 with play money and swap $1,000 for 10 $100 notes. Discuss the pattern that emerged from the material. Record $1,600 = 16 x $100 on the board or modelling book.
Repeat for $2,000; $1,300; $2,100; $1,100 ... Encourage the students to get the answer before modelling if they can.
Repeat, without money, for $6,000; $7,800; $2,400; $6,600; $5,670 ...
Activity
Record 130 x $10 = on the board or modelling book and discuss what it equals.
Record 130 x $10 = $1300 on the board or modelling book.
Repeat for 120 x $10; 490 x $10; 720 x $10; 840 x $10; 470 x $10 ...
Reverse: Discuss how many $10 notes make $1,000.
Find the number of $10 notes in: $4,000; $7,000; $2,000; $13,300; $2,600; $4,560; $2,380 ...
Extension Activity
How many $1,000 notes to make $1,000,000; $3,500,000; $4,567,000 ... ?
How many $10,000 notes to make $670,000; $560,000 ...?
How many $100,000 notes to make $2.5 million; $5 million ...?