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
41 + 20 = ______
24 − 10 = ______
69 − 10 = ______
48 + 10 = ______
65 + 10 = ______
8 × 10 = ______
81 + 20 = ______
63 + 10 = ______
4 × 10 = ______
60 + 10 = ______
70 − 10 = ______
7 × 10 = ______
62 − 10 = ______
78 + 20 = ______
68 + 20 = ______
24 + 20 = ______
84 − 10 = ______
3 × 10 = ______
1 × 10 = ______
52 + 10 = ______
