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
39 − 10 = ______
2 × 10 = ______
9 × 10 = ______
1 × 10 = ______
4 × 10 = ______
22 + 20 = ______
53 − 10 = ______
26 + 10 = ______
69 + 10 = ______
62 + 10 = ______
98 − 10 = ______
44 + 20 = ______
29 + 20 = ______
20 + 10 = ______
81 − 10 = ______
5 × 10 = ______
12 + 20 = ______
95 − 10 = ______
79 − 10 = ______
23 + 10 = ______
