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 = ______
9 × 10 = ______
4 × 10 = ______
5 × 10 = ______
50 + 10 = ______
17 + 20 = ______
68 + 10 = ______
16 + 20 = ______
6 × 10 = ______
84 + 10 = ______
36 − 10 = ______
80 − 10 = ______
29 + 20 = ______
86 − 10 = ______
27 − 10 = ______
22 + 10 = ______
22 − 10 = ______
28 + 20 = ______
30 + 10 = ______
58 + 10 = ______
