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
85 − 10 = ______
51 + 20 = ______
67 − 10 = ______
57 + 10 = ______
51 + 10 = ______
76 + 20 = ______
24 + 10 = ______
74 + 10 = ______
64 + 10 = ______
24 − 10 = ______
7 × 10 = ______
51 − 10 = ______
76 − 10 = ______
8 × 10 = ______
80 − 10 = ______
27 + 10 = ______
19 + 10 = ______
32 + 20 = ______
45 − 10 = ______
52 + 20 = ______
