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
1 × 10 = ______
45 − 10 = ______
70 + 20 = ______
35 + 10 = ______
2 × 10 = ______
4 × 10 = ______
87 + 20 = ______
6 × 10 = ______
86 + 10 = ______
49 + 10 = ______
64 − 10 = ______
36 + 10 = ______
41 + 20 = ______
8 × 10 = ______
41 + 10 = ______
72 + 10 = ______
5 × 10 = ______
3 × 10 = ______
21 + 10 = ______
69 − 10 = ______
