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
3 × 10 = ______
77 + 20 = ______
66 − 10 = ______
69 − 10 = ______
81 − 10 = ______
29 + 20 = ______
7 × 10 = ______
8 × 10 = ______
11 + 10 = ______
5 × 10 = ______
2 × 10 = ______
86 − 10 = ______
45 − 10 = ______
85 + 10 = ______
87 + 20 = ______
13 + 10 = ______
84 + 10 = ______
87 + 10 = ______
6 × 10 = ______
62 − 10 = ______
