What each digit is worth
In 352 the 3 is worth three hundred, not three. Seeing that, and writing it, is the base of adding and subtracting with bigger numbers, regrouping included. These sheets go from counting blocks to writing numbers in expanded form, one small step at a time.
Three tasks
- Blocks. Count the flats, rods and cubes, then write the number.
- Tens and ones. 47 = 4 tens 7 ones; 352 = 3 hundreds 5 tens 2 ones.
- Expanded form. 352 = 300 + 50 + 2.
Next steps
Once place value is secure, move on to two-digit addition andsubtraction with regrouping.
In the MATATAG curriculum
- Grade 1Place value in two-digit numbers, splitting them into tens and ones, and adding in expanded form.
- Grade 2Place value in three-digit numbers, with numbers up to 1000.
- Grade 3Place value in four-digit numbers up to 10,000, and rounding to the nearest ten, hundred or thousand.
In Filipino maths lessons the places are isahan (ones), sampuan (tens) and sandaanan (hundreds). Using both sets of words helps children who meet the ideas in Filipino first.
The guide asks children to show numbers with models before writing them. Bundles of ten sticks, or a peso version with ₱1 coins and ₱10 coins, work well before the base-ten block pictures.
Summarised in our own words from DepEd’s MATATAG Mathematics Curriculum Guide, Grades 1–10 (2023).
