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 = ______
9 × 10 = ______
52 + 20 = ______
8 × 10 = ______
20 + 20 = ______
70 + 20 = ______
49 − 10 = ______
55 + 20 = ______
76 + 10 = ______
69 − 10 = ______
75 − 10 = ______
22 − 10 = ______
5 × 10 = ______
48 + 10 = ______
47 − 10 = ______
4 × 10 = ______
16 + 10 = ______
67 − 10 = ______
2 × 10 = ______
88 + 10 = ______
