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
3 × 10 = ______
29 − 10 = ______
5 × 10 = ______
67 + 20 = ______
70 − 10 = ______
22 − 10 = ______
9 × 10 = ______
93 − 10 = ______
77 − 10 = ______
69 + 20 = ______
36 + 10 = ______
45 − 10 = ______
55 + 10 = ______
39 + 20 = ______
88 + 10 = ______
79 − 10 = ______
6 × 10 = ______
25 + 20 = ______
41 − 10 = ______
25 + 10 = ______
