Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
62 − 10 = ______
1 × 10 = ______
42 − 10 = ______
57 − 10 = ______
33 + 10 = ______
64 − 10 = ______
49 + 20 = ______
77 + 10 = ______
12 + 10 = ______
5 × 10 = ______
79 − 10 = ______
65 − 10 = ______
7 × 10 = ______
52 − 10 = ______
74 + 10 = ______
8 × 10 = ______
3 × 10 = ______
9 × 10 = ______
6 × 10 = ______
22 + 20 = ______
