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
54 − 10 = ______
16 + 20 = ______
65 − 10 = ______
78 + 20 = ______
76 + 10 = ______
74 + 10 = ______
83 − 10 = ______
6 × 10 = ______
24 − 10 = ______
20 + 20 = ______
44 + 10 = ______
18 + 10 = ______
4 × 10 = ______
86 − 10 = ______
60 + 20 = ______
17 + 20 = ______
62 − 10 = ______
2 × 10 = ______
74 − 10 = ______
21 − 10 = ______
