Close to 100
Recall the number of tens and hundreds in 100s and 1000s.
Identify symbols for any fraction, including tenths, hundredths, thousandths, and those greater than 1.
Solve addition and subtraction problems using decomposition, leading to a written algorithm
Number Framework Stages 5 and 6
Dice
Each player rules up a column for “tens” and a column for “ones”. The aim of the game is to get a total as close to 100 as possible. The student tosses a dice and decides whether the number will be put in the ones or the tens place. For example, if a four is thrown, it could either be 40 or four. The dice is rolled a total of seven times. All seven numbers must be used. The total of all the columned numbers may exceed 100, but the students will need to decide which player has got closer to 100.
Extension Activity
Use larger numbers and decimals for the target numbers. Vary the number of throws and what the thrown number can represent, such as:
Closest to 1 000: 10 throws of hundreds, tens, or ones.
Closest to 10: 10 throws of ones, tenths, or hundredths.
Closest to 1: 10 throws of tenths, hundredths, or thousandths