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
76 + 20 = ______
32 − 10 = ______
8 × 10 = ______
39 − 10 = ______
24 − 10 = ______
39 + 10 = ______
83 + 10 = ______
45 + 10 = ______
37 + 20 = ______
86 + 10 = ______
51 + 10 = ______
63 + 10 = ______
3 × 10 = ______
65 − 10 = ______
81 + 20 = ______
96 − 10 = ______
91 − 10 = ______
98 − 10 = ______
28 − 10 = ______
30 + 10 = ______
