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
14 + 20 = ______
35 − 10 = ______
3 × 10 = ______
8 × 10 = ______
81 − 10 = ______
5 × 10 = ______
38 + 10 = ______
73 − 10 = ______
75 − 10 = ______
13 + 10 = ______
69 + 20 = ______
81 + 10 = ______
50 + 10 = ______
56 − 10 = ______
68 − 10 = ______
22 + 10 = ______
41 + 20 = ______
87 + 10 = ______
2 × 10 = ______
9 × 10 = ______
