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
68 + 20 = ______
94 − 10 = ______
69 + 10 = ______
7 × 10 = ______
96 − 10 = ______
74 − 10 = ______
12 + 10 = ______
34 − 10 = ______
97 − 10 = ______
37 + 20 = ______
87 + 20 = ______
60 + 10 = ______
22 + 20 = ______
72 − 10 = ______
4 × 10 = ______
54 − 10 = ______
84 + 10 = ______
77 − 10 = ______
16 + 10 = ______
20 + 20 = ______
