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
8 × 10 = ______
58 − 10 = ______
3 × 10 = ______
19 + 20 = ______
84 − 10 = ______
61 + 10 = ______
2 × 10 = ______
85 + 10 = ______
67 + 10 = ______
30 − 10 = ______
4 × 10 = ______
27 − 10 = ______
94 − 10 = ______
27 + 20 = ______
42 + 10 = ______
14 + 20 = ______
74 + 10 = ______
88 − 10 = ______
39 + 10 = ______
90 − 10 = ______
