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
52 + 10 = ______
53 + 20 = ______
39 − 10 = ______
68 − 10 = ______
53 − 10 = ______
8 × 10 = ______
68 + 10 = ______
56 + 20 = ______
28 + 10 = ______
88 + 10 = ______
94 − 10 = ______
35 + 20 = ______
9 × 10 = ______
51 + 20 = ______
63 + 20 = ______
53 + 10 = ______
61 − 10 = ______
4 × 10 = ______
14 + 10 = ______
1 × 10 = ______
