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
30 + 10 = ______
85 − 10 = ______
41 + 10 = ______
2 × 10 = ______
84 − 10 = ______
98 − 10 = ______
60 + 20 = ______
54 − 10 = ______
32 + 20 = ______
94 − 10 = ______
7 × 10 = ______
67 + 20 = ______
72 + 20 = ______
62 + 10 = ______
59 − 10 = ______
24 − 10 = ______
8 × 10 = ______
65 − 10 = ______
20 + 10 = ______
71 + 20 = ______
