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
2 × 10 = ______
5 × 10 = ______
8 × 10 = ______
44 + 20 = ______
89 + 20 = ______
44 + 10 = ______
94 − 10 = ______
3 × 10 = ______
47 − 10 = ______
30 + 20 = ______
84 + 20 = ______
4 × 10 = ______
46 − 10 = ______
85 + 20 = ______
25 + 20 = ______
37 + 20 = ______
25 − 10 = ______
80 + 20 = ______
56 − 10 = ______
48 + 20 = ______
