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
8 × 10 = ______
1 × 10 = ______
53 − 10 = ______
41 + 10 = ______
26 + 10 = ______
20 + 20 = ______
52 − 10 = ______
4 × 10 = ______
74 + 20 = ______
78 − 10 = ______
9 × 10 = ______
6 × 10 = ______
19 + 10 = ______
83 − 10 = ______
59 − 10 = ______
87 + 10 = ______
89 + 10 = ______
37 + 20 = ______
86 − 10 = ______
2 × 10 = ______
