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
6 × 10 = ______
7 × 10 = ______
67 + 20 = ______
24 + 20 = ______
2 × 10 = ______
4 × 10 = ______
13 + 20 = ______
65 + 20 = ______
81 + 10 = ______
81 − 10 = ______
8 × 10 = ______
33 + 20 = ______
19 + 20 = ______
9 × 10 = ______
16 + 10 = ______
88 − 10 = ______
98 − 10 = ______
88 + 20 = ______
63 − 10 = ______
61 − 10 = ______
