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
65 + 10 = ______
67 − 10 = ______
59 + 10 = ______
56 + 10 = ______
86 + 10 = ______
69 − 10 = ______
76 − 10 = ______
19 + 20 = ______
89 + 20 = ______
38 + 10 = ______
49 − 10 = ______
8 × 10 = ______
5 × 10 = ______
12 + 20 = ______
74 − 10 = ______
34 + 10 = ______
6 × 10 = ______
7 × 10 = ______
58 − 10 = ______
25 + 20 = ______
