Use visual frames to organize and explore subtraction within 20 systematically. Visual frames provide structured slots that make it easy to see how numbers are composed and organized. An excellent exercise for children ages 5-8 building lasting math skills. Strong subtraction skills empower students to solve comparison, difference, and change problems.
Sekarang mengurangi dengan bilangan lebih besar! 15 − 7: pertama mundur ke 10 (15−5=10), lalu 2 lagi (10−2=8)!
Melewati puluhan dalam pengurangan analog dengan penjumlahan: pertama ke puluhan, lalu lanjutkan. 13−5: pertama 13−3=10 (ke puluhan), lalu 10−2=8 (sisanya). Strategi alternatif: menghitung maju. 13−5=? → 5+?=13 → 5+5=10, 10+3=13 → 5+3=8.